Mary: Hi, Dick.
Dick: Oh, uh, Mary. Just doing some reading. Some physics reading, you know.
Mary: Oh, that's nice.
Sally: Say, uh, an amusing joke just came to me. You know, out of the blue. Knock, knock.
Mary: Okay. Who's there?
Dick: Uh... Uh, uh, "Who's there," you say? Uh... [reads] [Nina enters] Oh, uh, uh, Nina.
Mary: "Nina" who?
Dick: Our Nina. She's right here! [laughs] Please let me host that fundraiser!