(D.W. enters the backyard where Arthur, Buster, and the Brain are to have their sleepover)
Arthur: D.W., no! You aren't invited.
D.W.: Why not?
D.W.: Because why?
Arthur: Because, because.
D.W.: Because, because why?
Arthur: Because, because, because.
D.W.: Because, because, because WHY?!
Arthur: (slows down) Because, because, because, because...
(the Brain whispers into his ear)
Arthur: You'd get scared of the dark.
D.W.: No, I wouldn't.
Arthur: Yes, you would.
Brain: Who do you think's gonna win?