Niles: Wow, he's really handsome isn't he?
Frasier: Wow? Did you say 'wow'?
Niles: Good Lord I did. I don't think I've ever said 'wow' when describing another man before. I wonder if that means something.
Frasier: Oh, absolutely. (sarcastic) It means you're a gay man. Your life with Maris was a charade and you should have come out of the closet years ago. Are you going to tell dad or shall I? (laughs)