Well. I mean. Then the thing to do would have been to leave BEFORE you actually ate the food. If you’re pissed about having to wait two hours, then leave after an hour and a half. At that point you didn’t eat any food, you have nothing to pay for. Once you eat the food, you’ve accepted the GOODS, so you pay for it. “Refusing payment for poor service” would mean something like cutting out the servers tip, which actually IS pretty common. You’re talking about refusing payment for GOODS you accepted, which is just literally stealing.