Negative Tip
Up to this point, you’ve seen horrible tips and no tips. But in this case, the customer tried to leave a negative tip! Yes, you read correctly. Some people try to haggle discounts with the manager, and some try to take “justice” into their own hands and give themselves the discount. That’s exactly what this person did.
First of all, you don’t get to decide what your bill should be. That’s for the restaurant to determine; this is not a country of bartering. Second of all, nothing about this situation is legal. The only thing that could have made this more illegal is if the customer broke into the register and rang up the bill themselves. Thankfully, they didn’t.