Another of Dad's Practical Jokes

Dad used to work in a garage, back in the early 1950's. They had a toilet in the garage, surrounded by a rough press-board enclosure. One day, Dad tightened up the hinge on the toilet seat so it would stay in just about any position you wanted. Then he wired a contact switch at the back of the toilet, connected to the air horn from a transport truck. Then he waited. Eventually, one of the guys had to use the toilet, sat down and connected the contact switch. Dad said that over top of the sound of the horn you could hear the sound of the guy clawing at the press-board, trying to get out and under the assumption that a transport truck was smashing through the garage. Dad's always been a great one for practical jokes.