Quote from Rachel in The One with Monica and Chandler's Wedding (Part 1)
Rachel: Monica, I'm not gonna screw it up. Monica: You're right. I'm sorry. You were a big help tonight. And thanks for putting my grandmother in the cab and making sure she got to the hotel safely. Rachel: Well, of course. That is what I'm here for. Monica: Okay. I'm sorry. Rachel: [to Phoebe] What grandmother?