Frasier: I'm meeting a new friend.
Niles: A new friend?
Frasier: Yes, you remember I was talking about widening my circle of friends.
Niles: Oh, I see. No more "falling back on Niles."
Frasier: It's not that I'm trying to replace you Niles. It's just that Bob and I-
Niles: Bob? You're dumping me for someone named Bob?