J.D.: By the way, what ever happened to the janitor?
Turk: Oh, dude. It was the day after you left.
[flashback:]
Janitor: When's that little buddy of yours coming back?
Turk: He's never coming back. He's gone for good.
Janitor: He's right here, isn't he?
Turk: Where would I be hiding him?
Janitor: But he's coming back?
Turk: No.
Janitor: After his vacation.
Turk: No.
[The Janitor drops his mop, wipes his hands clean and walks away]
[present:]
Turk: And no one ever saw him again.