How to Be a Bad Customer: Lesson Two
If you give your server both cash and a credit card to pay your bill and you say, “Take off the cash and put the balance on the card,” and then leave only a tip on the credit card amount, you either really can’t do math or you’re a jerk. Either way you screw your server.
The cash didn’t go to the tip, you moron; you told me to subtract it from the total bill. That money went to the house and you left me less than 5% tip. So much for all those drink refills I made sure you got timely.