Nurse: Oh, for God's sake. You kids again? And a head injury. You boys like to keep it interesting, don't you?
Malcolm: [to camera] We kind of have a history here.
[flashback to Reese about to hammer a nail into an pressurized can]
[flashback to Francis balancing a meat cleaver on his hand and throwing it up in the air]
[flashback to Malcolm sitting with a pair of scissors in front of his face as Reese sneaks up and pops a balloon behind him]
[flashback to Malcolm spinning his bicycle wheel as Dewey leans into it with his mouth open]