Bertie is pretending to be Gussie Fink-Nottle, and is trying to tell a joke to Dame Daphne Winkworth and her four maiden sisters.
Bertie: Now, I wonder, has everyone heard the one about the fan-dancer and the performing flea? No, actually, here's a better one. Uh, yes, there are these three deaf chaps on a train, and it stops at Wembley.
Charlotte Devrill: What's he doing?
Harriet Deverill: Mr Fink-Nottle is telling an anecdote.
Bertie: Anyway, there it is at Wembley, and one of the chaps says, "Is this Wembley?" and the other one says, "No, it's Thursday!"
Charlotte Deverill: What did he say?
Harriet Deverill: He said, "No, it's Thursday."
Charlotte Deverill: Not it's not; it's Friday. I know because I changed my library book.
Myrtle Deverill: It's a joke Charlotte!
Bertie: Thank you. Um, so then the third one says, "So am I. Let's go out and have a drink!"
Myrtle Deverill: It's a joke about drink Charlotte!
Bertie: No, it's not about drink, it's about, um...
Harriet Deverill: But why did the first man bring up the days of the week?
Myrtle Deverill: No, the first man is the one who says, "Is this Wimbledon?"
Bertie: No, no...
Emmeline Deverill: No, that was the second man!
Dame Daphne Winkworth: Let Mr Fink-Nottle finish his joke before we judge it!
Bertie: Well, that was it, actually.
Charlotte Deverill: Is it about tennis, perhaps?
Dame Daphne Winkworth: I don't care for jokes about tennis.
Harriet Deverill: No, it's subjects about tennis...
The old ladies begin to argue about the joke.