Quote from Sam in A Bar is Born
Rebecca: And how do you know that I haven't been to bed with Robin? Did Sam tell you that? Carla: No. I'm a woman. A woman knows. Frasier: You know, I must say I'm with Carla on this one. I mean, there's nothing wrong with two people getting to know each other before they have a physical relationship. Rebecca: And how did you know? Frasier: Well, I'm a psychiatrist. A psychiatrist knows. Tony: What are you waiting for, Becky? Pete: Hit the sheets already, kid. Rebecca: Sam. Sam: Pool players know.