Diane: Sam, we know how much this has hurt you, but your defensiveness about it is becoming annoying.
Sam: Listen, I don't know what you expected me to do when you told me, but the truth is this does not bother me. I am very happy for you two kids.
Frasier: Well, thank you, Sam. We couldn't be happier. The only thing that could stand in the way of a total commitment now would be Pavlov's response. [laughs] You see, that's my little joke, Sam. Pavlov is my dog, you see, and, well, I couldn't resist the witticism.
Diane: Let me explain, Sam. You see, Pavlov...
Sam: That's okay. I know all about Pavlov. Pavlov's response: drooling at the sound of a dinner bell.
Coach: I've done that before, but I never knew what to call it.