Hal: Okay, gentlemen ready to roll?
Malcolm: Yeah, let's do it.
Reese: Let's roll already!
Dewey: Yeah, come on, Dad.
Hal: [starts engine] Seat belt... check. Map... check. Sunglasses... check. Lumbar pillow... check. Mirrors... check. Does that sound like a loose valve casing to you?
Boys: Dad!
Hal: All right. You boys will soon learn there's nothing wrong with being careful.
[As Hal backs out of the drive, the car hits one of the boys' bikes]