Billy: I think-
Mandy: No, you don't.

From the Grim Adventures of Billy and Mandy (one of Luke's favourite shows. I think the show's creators had Luke in mind while creating the show haha).

I found this line really funny. And so true. Cos Billy never thinks, from what i gather whenever i pass through the TV room where my brothers are sprawled across the floor/couch like zombies watching Billy stick his bum into fans while studying (working his butt off).