Roz: See, there's this great woman who lives in my building. She's beautiful, and funny-
Frasier: Just stop right there, Roz. I do not go out on blind dates. They're demeaning and a hideous waste of time. No, thank you. No.
Roz: It's not for you, it's for your father.
Frasier: Oh! What time should he pick her up?
Roz: Wait a minute. Blind dates are okay for your father, but not for you?
Frasier: Yes. That also goes for games with balls, domestic beer, and giant trucks that roll over smaller ones.

Frasier: Dad! Dad! I have to talk to you about Niles. I got a call on the show today from a German woman whose husband is a fencing instructor that she suspects is having an affair with his wealthy new client.
Martin: And?
Frasier: Don't you find that the least bit incriminating?
Martin: No, I find it a coincidence. Seattle's a big city, I'm sure there's a bunch of German fencing instructors, each one with dozens of students.
Frasier: Yes, but are they wealthy students?
Martin: No. They're inner-city kids trying to work their way out of the ghetto with nothing but a foil and a dream.

Frasier: Apparently she worked for a German family that turned up in Guatemala... [deep voice] just after the war.