Quote from Phoebe in The One with Ross's New Girlfriend
Phoebe: So, what were you thinking? Monica: Well I was thinking that you gave the guys such great haircuts. I thought you'd maybe like to do mine. Phoebe: Oh. No. Monica: Why not? Phoebe: Because I'm just, I'm incredibly anal and an unbelievable control freak. Monica: No, you're not. Phoebe: I know I'm not, but you are. I was trying to spare your feelings.