when I was in high school i worked for a water well driller in the summer, and got sent with this real A-hole that abused the crap out of me. One morning I got to work before him and climbed in the passenger side of the drill rig and tied the airhorn to the arm rest of the drivers side door. when he went to get in the truck to leave he nearly chit his pants when he opened the door and the airhorns on the mack firerd off. I almost wet myself