Monica: Why in the world would you take this tape? And, and why would you watch it?
Chandler: Because that's who I am! Okay? I'm sure a mature man like Richard could see a tape like that and it wouldn't bother him... it would be just another saucy anecdote for him to share at his men's club over brandy and mustaches!
Monica: Is all this about you not being able to grow a mustache?
Chandler: This is about you and Richard. He's clearly not over you--he keeps a tape so he can look at it whenever he wants!
Monica: Isn't that sad? I mean, can't you see how pathetic that is? You shouldn't be jealous, you should feel bad for him!
Chandler: Oh, yeah, well... poor Richard, he, uh.... (it dawns on him what she said) I can grow a mustache!