Niles: Well, last night I invited Dad to use my apartment for a quiet, romantic dinner with Sherry while I attended "La Traviata." Well, the production was just dreadful. In "Ah, fors'e lui," the soprano couldn't hit the E flat above high C to save her life. So, I got so fed up I stormed out, drove home, entered my apartment and when I saw what Dad and Sherry were doing there, I hit the note myself.
Frasier: You mean they were...
Niles: They were!
Frasier: Oh! What did you do?
Niles: Pulled up a chaise lounge and took out my opera glasses, what do you think I did? I slammed the door and ran away. I've never been so embarrassed.