“I used to work at a store that sold clocks. One day a woman came in to return a clock that she’d bought. I asked what was wrong with it, and she said, “you’re not going to believe me, but it runs backwards”. “Let me see,” I said, and put some fresh batteries in it. Sure as hell, the thing ran backwards.

I gave her a refund and she was very thankful. She turned to leave and the second she left the store, the clock started running normally.”