Phoebe: Listen, just promise me that you'll wait a minute before you call Estelle.
Joey: Okay. Why?
Phoebe: (improvising) Because... a promise between friends means never having to give a reason.
Joey: Ah, I love that sayin'.
Chandler: I feel like we're cheating on our house. And if we're going to cheat, shouldn't it be with a hot, younger house that does stuff that our house won't do?