Quote from Niles in The Matchmaker
Tom: Er, Niles, can I speak with you for a moment? Niles: Yes. Tom: I was wondering, did I do anything that offended you? Niles: No. [angrily throws pots into the sink] Tom: Oh. It must be all in my head. But I sensed that you had a problem with me dating Frasier. Niles: Well, if you must know... [long pause] ... I'm sorry, what was the question? Tom: Do you have some problem with me dating your brother? Niles: [pleasantly] No.