Frasier: Listen, Niles, I would never stay in a relationship if I didn't think there was some real future in it.
Niles: In other words, if you were to realize that the two of you had nothing in common beyond the physical, you'd break it off?
Frasier: Yes, absolutely. In a heartbeat. It's a principle of mine. You know, this topic comes up all the time on my show. What do I always say?
Niles: Um.
Frasier: Surely you must listen occasionally.
Niles: Of course I listen occasionally. It's just I'm usually busy between eleven and one.
Frasier: My show is on from two to five.