Guy: (after Frasier barges into his room, dressed only in a towel) You're not the Crane I want!
Frasier: You're not even the sex I want!
Guy: Where is Niles?
Frasier: Oh, Niles!
Niles: Frasier! What are you doing in Guy's room?
Guy: Don't be jealous, Niles, it's not how it looks.
Niles: Oh. (turns back, then realises what Guy just said) What?!