Ross: What is this?!
Chandler: I'm smoking. I'm smoking, I'm smoking...
Phoebe: Oh, I can't believe you! You've been so good, for three years.
Chandler: (showing the cigarette) And this... is my reward.
Ross: Hold on a second, alright? Just think about what you went through the last time you quit... Y'know what? ...forget about you! Think about what we went through the last time you quit!
Chandler: Okay, so this time I won't quit.