Diane: Well, she's very sweet, obviously, but I'm a cat person. I obviously have some kind of an allergy to dogs.
Sam: Are you sure it's the dog?
Diane: Well, what else could it be?
Sam: You've been around that dog before. I mean, you must have. You know, moving in with Frasier is a big commitment. I just wonder if this whole so-called allergy thing might not be psychosomatic.
Diane: Oh, Sam, I'm very impressed. That's a complex psychological concept coming from a man who has to write L and R on the bottom of his shoes.