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A body of water filled with any variety of unpleasant creatures, such as alligators, killer jellyfish, piranha, or sharks (with or without frickin' lasers on their heads). Inconvenient heroes and their sidekicks are either suspended over the pool on a slowly-descending rope, or are delivered into it by way of a chute or Trap Door. Also may be used to dispose of henchmen who have failed for the last time.
The hole or vat may contain substances besides water, including molten metal, toxic waste, hot lava, or, for the villain who happens to have a Sweet Tooth, boiling chocolate, caramel, or any sugary or savory food in liquid form. See also Acid Pool.
Compare with Animal Assassin, where the dangerous animals are delivered to the victim rather than the other way around.
See also Fed to the Beast.
Anime & Manga
- In a rare anime example, Excel Saga features the title character frequently being dropped into a pit of alligators, piranha, and/or various other nasties by her superior-slash-object of obsessive affection, Il Palazzo. When Il Palazzo's wrath is imminent the rope to open the trap door for the pit spontaneously descends (by mechanisms unknown) into his reach. In the manga, the animals in the pit become increasingly ludicrous (baboons!), while the main characters lampshade the pit's creatures on a regular basis, for example wondering if Lord Il Palazzo personally hunts the animals put down there, since there shouldn't be any members in the organization besides the main characters.
- Rando hangs Yusuke over a pond of piranha-like fishes in Yu Yu Hakusho.
- Pokémon Special: Aqua Admin Ark, feeling as if Locked in a Room and his handmade Drowning Pit variant weren't lethal enough, calls out his Sharpedo to turn it into a makeshift Shark Pool. Ironically, attempting to execute a Nature Heroine in this fashion wound up taking a bite out of his own fisherman's basket instead.
- Happens regularly throughout various incarnations of Batman, where he utilizes his grappling hook at the last second.
- Although the Shark Repellent Bat-Spray probably deserves a special mention.
- And it was on a rack labeled "Oceanic Repellent Bat-Sprays" and there were three other varieties for different animals around it.
- In The Joker's Five-Way Revenge (a notable comics story marking the return of the psychotic murderous version of the character), the Joker threatens an old henchman (who he suspects of having betrayed him) with this... unless Batman volunteers to take his place. Naturally, Batman accepts. Naturally, the Joker reneges and dumps them both in the pool. Naturally, Batman beats the trap, rescues the hostage, and collars the Joker.
- In the comic Gorsky and Butch, the Mad Scientist Dr. Fishstein/Fishmeyer/Fisherking has this as his preferred method of doing evil. Being completely incompetent, he keeps forgetting about water....
- Wanted has alternate universe Batman and Robin captured by Mr. Rictus, suspended over a tank with a man-eating robotic octopus. Because they can't remember that they are superheroes, they die horribly.)
- In one Daredevil storyarc, the hero ends up in an old mansion converted into a gigantic house of DEATH. At one point, he gets thrown into a tube and ends up in a pool... which, due to lack of maintenance, featured a half empty base, and a suffocating shark. Subversion!
- One The Far Side cartoon features medieval soldiers storming into a castle on the drawbridge. One of them looks down to see what's in the moat, and shouts "Ooh! Goldfish, everyone!"
- The Wizard of Id has the moat around the castle filled with Stock Ness Monsters.
- Benalish Hero in What's New with Phil and Dixie, after becoming the Pirate Queen got this:
Benalish Hero: (grinning) Jones! Someone put a shark in my bath!
Films — Animation
- In The Emperors New Groove a pull on the wrong lever drops characters into a crocodile pit. Even the lever's creator questions the wisdom of this setup.
- In the 1986 Transformers the Movie, anyone the Quintessons found "innocent" was dropped into a tank filled with Sharkticons.
- In Despicable Me, Vector's living room sits on top of a shark tank — with a transparent floor.
Films — Live-Action
- Cleverly inverted in Deep Blue Sea: the shark tank in question was built by the protagonists and most of the movie consists of the sharks breaking into the non-tank parts of an aquatic research base. Better Than It Sounds.
- The aforementioned Austin Powers example. In the third movie, Dr. Evil did get sharks with frikkin' laser beams attached to their heads.
- Star Wars
- James Bond villains are notorious for this.
- Ernst Blofeld pulls off his signature move in You Only Live Twice by dumping one of his underlings into a piranha tank.
- In Thunderball, Largo tosses a mook who has failed him into a swimming pool. Not so bad, except it has a Trap Door that opens to let in a school of hungry sharks. Bond winds up in it too, but (no need for spoiler warning here:) Bond lives.
- Mr. Big/Kananga has a shark pool in his Elaborate Underground Base in Live and Let Die. And earlier in his Louisiana lair, Dragon Teehee strands Bond in a large pond full of crocodiles and/or alligators.
- Karl Stromberg has a shark pit in his lair in The Spy Who Loved Me with push-button Trap Door access.
- Hugo Drax drops Bond into a pool with a reticulated python in it in Moonraker.
- Franz Sanchez feeds Bond's friend and collaborator Felix Leiter to a shark in a marine research facility in Licence to Kill. He survives, but is badly mutilated. Bond is certainly NOT pleased when he finds out.
- In The Phantom, the Sengh Brotherhood has a Shark Pool in their Elaborate Underground Base. This is one of the parts of the film lifted directly from the very first Phantom story, published way back in 1936, so the trope is at least that old.
- Subverted in Ace Ventura: Pet Detective, when Ace stumbles into a literal Shark Pool that turns out to actually vindicate the man he is investigating, who was shaping up before that to be a classic arch-villain. (Ace thought it contained the stolen Miami Dolphins mascot.)
- A particularly ludicrous example is the opening scene of the French movie Le Magnifique: A spy is trapped in a phone booth, which is then lifted by an helicopter (!!) and dipped into the sea, where a squad of frogmen attach it to a shark's cage before opening the door. Of course, the scene is purposefully over-the-top as it's a parody of the whole James Bond/OSS 117 type of spy literature.
- In the Stormbreaker movie, Alex Rider is dropped in a tank with a giant Portugese Man o'War. That was in the book, too.
- One villain in Speed Racer keeps a tank of pihranas in his truck which he uses to threaten Taejo.
- In the 1936 Flash Gordon Serial film serial, while in the underwater city, Flash is locked in a tank to fight a shark.
- James Bond
- Elminster in Myth Drannor features fish-feeding, but with separate mincing (elves are tidy):
Symrustar had over a thousand finned and scaled pets here. From the crowning bowl where she now scattered morsels of the secret food she mixed herself (Amaranthae had heard it said that its chief ingredients were the ground flesh, blood, and bones of unsuccessful suitors)... (after next page there is little doubt).
- In The Last Hero, Evil Overlord wannabe Evil Harry Dread is cheated and gets dolphins instead of sharks for his pool.
- Lord Vetinari is said to have a Scorpion Pit. Various characters have mentioned it, but we've never actually seen it. In Guards! Guards!, Vetinari himself is thrown into a dungeon and reveals that his predecessor was a little too gung ho with this trope, and had used scorpions, snakes, and rats. Vetinari actually befriended and advised the rats, so now they were the only ones left (and quite loyal to him). Whether or not this is the same place as the aformentioned Scorpion Pit is unknown.
- Paul Kidby did an illustration of the scorpion pit for The Art of Discworld. In it is a mime. Hung upside down. Opposite an (unseen) plaque saying "LEARN THE WORDS". Do not try to do mime in Ankh-Morpork.
- The "slow death caused by being lowered into a pond full of killer fish" idea is Older Than Feudalism. Seneca wrote about a wealthy Roman who was really pissed off at one of his slaves for breaking a glass when the emperor was visiting. So he decided to have the slave thrown into a pool full of famished moray eels, because that way it'd take longer for him to die. Good times! Thankfully, the story ends with the slave being spared because the emperor finds the idea barbaric.
- Seneca's idea is recycled by Robert Harris in the novel Pompeii, where the main villain does this to a slave who kills an entire tank of rare expensive fish. In front of the slave's old mother.
- At the end of the Dan Brown book Deception Point, one of the heroes threatens the villain by holding a wounded assassin over a large group of frenzied sharks.
- The second book of the Care Taker trilogy, Whirlwind has a particularly nasty version: a candiru pool. The Big Bad actually breeds the things just so he can have this nifty pool to threaten people with. People thrown in take many days to die, during which time they are in agony. Some even try to drown themselves in order to avoid this, but "the body's impulse to stay alive is remarkably strong, even with the certain knowledge that one would be far better off dead."
- Matthew Reilly loves this trope. It all started when the Big Bad noticed killer whales hanging around in the dive pool, and got re-used with caimans, komono dragons and sharks in his next books.
- Gentleman Bastard
- In The Lies of Locke Lamora, crime boss Capa Barsavi has an enclosed pool beneath his ship-based headquarters, in which he always keeps "something nasty" for when he drops victims into it.
- The city of Camorr also uses a variant as part of its justice system. At the Shifting Market, prisoners condemned for crimes such as rape and murder are granted a reprieve if they can fight off an angry devil fish (which is apparently like a really pissed off octopus) with naught but a tiny dagger. Few people, if any, succeed at this task.
- In The Illusion, a scientist is dropped into a pit of Taxxons — basically giant, eternally-hungry, alien centipedes which eat everything they can get their mouths around.
- There's a more literal narrow aversion in The Escape. Marco is halfway to shark morph in the school swimming pool and really wanting to rip into some boys who are bullying him. It's only Jake talking to him that convinces him to reverse the morph and let it go.
- A particularly chilling example of this trope occurs in the autobiography When Rabbit Howls written by the multiple personalities of a woman. As a punishment her sadistic stepfather lowers her into a well infested with snakes. The trauma of this single event finally pushes her over the edge and she begins to split off her personalities to deal with her abuse.
- In the 2006 Robin Hood series, Robin at one point is lowered into a pit of venomous snakes... that were clearly harmless boa constrictors.
- One sketch in the BBC series The Wrong Door has an evil genius discussing this with a workman fixing his Trap Door. The workman points out that piranhas aren't that deadly, being omnivores, and even pointing out that his last victim is still alive. He then recommend polar bears to be the optimum creatures for a killing pool.
- The antagonist of The Outer Limits episode The Camp kept a giant squid-like monster in a tank and used it as a means of executing prisoners. On occasion, a tentacle would be broken off and used as food.
- A Saturday Night Live James Bond movie parody has archvillain Christopher Walken taking Bond through his lair, still under construction due to contractors being behind schedule. Walken shows Bond architectural renderings of what he would do, including dropping him into a shark tank.
- In The Vampire Diaries the moonstone is placed in a well filled with vervain, making it an Acid Pool to vampires. It also contains snakes, though possibly only by coincidence.
- In the Batman episode "The Spell of Tut", King Tut uses a Crocodile Pool as a Death Trap for Robin.
- CSI has a plot where a killer put a shark in a casino swimming pool, resulting in it eating someone (thus making it a double duty trope with Animal Assassin).
- Kim Jong-il has one in Team America: World Police, which he drops Hans Blix into.
- Dungeons & Dragons
- The add-on Dungeonscape features an acidborn template... making... wait for it... SHARKS IN ACID. Which is basically the most awesome idea ever.
- The template can also be adapted to produce "lavaborn" creatures. Guess where they swim around.
- Dragonlance module DL12 Dragons of Faith. One of the traps in a maze is a Trap Door leading to a pool filled with sharks.
- Dwarf Fortress
- It is possible to create something much worse in Dwarf Fortress — the Carp Pool!
- It Got Worse — croc pool. Alligators are 15 times bigger and proportionally meaner. And when they finally bite it, there are much more valuable bones and good leather. Tamed crocs outperform turkey in churning out tons of edible eggs... while sitting in their pool and biting in half any goblin who happened to drop in. Or be chained on the ground like guard dogs, since they're amphibious. Thus, it's possible to have a goblin dodge two guard crocs only to stumble off the road into croc pit with a handful of their brothers and sisters.
- Or you could just use one of the many species of shark.
- Pools filled with leeches are very common in Blood 2. And 90% of the times, the game REQUIRES you to swim through it.
- One mission in Hitman: Blood Money features one target who performs onstage above a shark tank. The pyros can be rigged to set her on fire, forcing her to dive into the tank, where she is promptly eaten.
- Mechanical shark tanks are an uncommon hazard for motorcycle stuntman Joe Danger.
- The Facebook MMORPG Mob Wars had a weekly limited heist that was offered from the 8th to the 13th of Feb '11 which involved "smuggling a man-eating shark into their private pool".
- Exaggerated in Paper Mario the Thousand Year Door, where every single body of water, from the shoreline of Keelhaul Key to the docks of Rogueport to an innocuous, luxurious water fountain in Poshley Heights, has piranhas waiting to bite at Mario should he fall in.
- The aforementioned acidborn shark from Dungeonscape is prominently featured in strip #541 of The Order of the Stick, where O-Chul is dropped into a vat of spikes, acid, and an acid-breathing shark. The villains make wagers on his survival in a game show format. Extra Irony bonus: Rich Burlew, the author, was involved in writing said add-on. He says, "If I thought I could have slipped laser-headed sharks through the WOTC editing staff, I would have."
- "The Voice of Reason" from Questionable Content.
- Parodied in Adventurers: the Big Bad threatens to throw his enemies into a "vat of boiling sharks", but soon realizes that it wouldn't work.
Khrima: And this "boiling sharks" idea of yours... Wouldn't the sharks die if we boil them?
- The "Revenge of the Weasel Queen" side-story of Girl Genius. Not only a pit of acid, but it's filled with mutant acid-resistant flying piranhas equipped with flamethrowers and battle axes. And much, much more! There's a reason why the Weasel Queen calls it her "Pit of DOOOOOM". When you go through the list of threats, Phil Foglio pretty much covers all the tropes of this genre. What trope is covered by the robotic Morris dancers? Rule of Funny, Crazy Awesome, Ninja Pirate Zombie Robot, Mad Science....
- Bob and George With robotic sharks and two other death traps
- The fictional movie trailer Shark Pool, naturally enough, features one of these. However, it's a swimming pool, and the only thing making people go into it is abject stupidity.
- Batman the Animated Series
- The Joker does this in the episode "The Laughing Fish", in a scene adapted directly from the example under "Comic Books".
- "Mad Love" does this with piranhas. The Joker had concocted it as one of his many potential ways of eliminating Batman, but gave up on it because there was no way to make it funny. He had wanted to call it the "Death of a Thousand Smiles", but piranhas are incapable of smiling, even when given Joker-Venom. Harley Quinn tried to implement the plan herself to impress him, reasoning that the frowns would look like smiles if you lowered Batman into the tank upside-down. Joker was furious, however, because she had to explain the joke.
- Batman Beyond
- In the episode "Unmasked", a member of Kobra who let the plan slip is tossed into a pit of snakes. He doesn't get a last-second reprieve, either.
- In the episode "Out of the Past", two mooks try to throw Terry into an alligator pool, but he breaks free and throws one of them in instead. To his credit, the mook fights off the alligators with his machete and escapes.
- Several Looney Tunes show alligator-filled versions.
- A late-entry Wolf and Sheepdog cartoon has Ralph Wolf rigging up a can't-miss deathtrap for Sam Sheepdog, with an armory of weapons at point-blank range, the bluff he's on undercut and rigged to break off over a big tank full of hungry crocodiles — just as he's throwing the master switch, the 5:00 whistle blows. He rolls his eyes and sighs "Pshaw!" and companionably heads home with Sam.
Sam: Better luck next time, Ralph.
- Kim Possible used several variants of this:
- Dr. Drakken used the standard shark version in his first episode.
- Another villain had a tank of electric eels.
- In his first apperance, Señor Senior Sr. threatened Kim with ravenous koi because "the piranha have not yet arrived."
- Cheapskate villain Frugal Lucre once threatened Kim and Ron with a kiddie pool full of baby snapping turtles.
- Dr. Drakken goes over-the-top in a later episode by dropping a chained-up Kim in a locked safe into a
bottomlessvery very deep chasm filled with water, covered in six feet of ice, and containing a shark and man-eating squid. Of course she manages to escape thanks to a few Contrived Coincidences.
- Señor Senior Sr. also had a shallow pool with crocodiles.
- Professor Dementor had an almost generic shark pool, filled with lava!
- Evil!Ron had a piranha pool prepared in order to scare Shego into complete obedience. It worked.
- In The Venture Brothers episode "Are You There, God? It's Me, Dean", the Monarch has the main characters tied up and prepared to drop them all into a river infested with candiru fish. Venture mocks him, claiming the candiru's ability to swim up a man's urethra is an urban legend, too bad he's wrong. (You may now cringe if you're a guy.) He has also used an actual pool of sharks to aid in the execution of a purportedly disloyal henchman. Although the sharks didn't touch him, because he'd already replaced the guy's blood with acid.
- Jackie Chan Adventures has Jackie and Tohru suspended over one.
- The Pirates of Dark Water features Bloth's Constrictus, a nasty alien creature that lives in a watery pit in his deck, and that he uses to dispose of enemies and stupid crewmen. Quoth the first episode:
Niddler: I want to be fed!
- Megas XLR has Kiva and Jamie being suspended over a quantum singularity. Because it's funnier.
- In Teen Titans, the villain Control Freak sics a mechanical shark on Aqualad. Trust us, there's a reason he couldn't have used a real shark.
- From The Tick:
- Dr. Doofenshmirtz from Phineas and Ferb has done this to Perry the Platypus a few times, such as in "The Ballad of Badbeard" with a pair of alligators.
- Jimmy Two Shoes: Lucius has a Trap Door that drops into a pit of...eel things in his office.
- Snap Trap from Tuff Puppy has a shark tank as his favored methiod of tormenting Larry. He also ties Kitty and Dudley up and prepares to dip them into it as a Death Trap, but presses the wrong button and gets a Lava Pit instead. He decides to go with it anyway.
- The New Adventures of Superman episode "Luthor's Loco Looking Glass". Lex Luthor puts Jimmy Olson in a Death Trap involving a sliding floor over a pool of sharks.
- The Powerpuff Girls had HIM invent the "vat of boiling sharks" trick as part of a Knights and Knaves setup. HIM being a Reality Warper, HIM could go that in the middle of a test of logic puzzles and get away with it.
- Batman the Brave And The Bold: In "The Mask of Matches Malone!", 'Matches' (actually an amnesiac Batman) attempts to lower the Birds of Prey into a shark tank.
- The Golden Nugget Casino Hotel in Las Vegas has a shark tank next to the swimming pool. It even has a transparent water slide that goes through the tank.
- The Georgia Aquarium has a shark pool with four foot long Bonnet Head Sharks — that visitors are encouraged to touch. (They're fairly even-tempered sharks.)
- Most aquariums have tanks full of aquatic predators.
- The Carbrook golf club in Australia became famous for having live bull sharks in a water hazard.
- Golf courses in Florida regularly have to call Animal Control to remove alligators from their water hazards and avert this trope.