A San Francisco cable car gripman told me this one. In the old days, management hired people to ride around and check whether the conductors were turning in all the fares they collected. There was one man who was cheating rather blatantly. He used the money to customize a Cadillac convertable with every accessory he could possibly squeeze on. Management found out about it and waited till the day the car was finished. Then they fired him. Management had more class 50 years ago.