13. Drunk Math
Drunk people can’t do the math. It’s common knowledge that it just never works out. They can’t add correctly and usually mistake bills for a different amount. This woman mistakenly thought she was doing a good deed and tipping the taxi driver very well. She slipped the driver a $10 bill, winked, and told him to keep the change, but the ride cost $24. Maybe she thought she was handing him two twenty-dollar bills. You can guess the cab driver wasn’t too happy and there was an awkward conversation following the exchange. We can’t blame her, though, because we’ve all been there (via Reddit).