Quote from Joey in The One with Monica and Chandler's Wedding (Part 2)
Joey: I'm having surgery. Director: What? Joey: I just made up the stuff about the wedding, because I didn't want you to worry about me. But I'm having surgery today. Director: What kind of surgery? Joey: Transplant. Director: But you're supposed to work on Monday. Joey: Hair transplant. Director: But you're not bald. Joey: It's not on my head.