Same happend to me in NYC. We did not tip enough and the waiter dropped the f-bomb on us and told us to never come back. He even threw the tip after us. I did

Same happend to me in NYC. We did not tip enough and the waiter dropped the f-bomb on us and told us to never come back. He even threw the tip after us. I did not get it. Where i live we usually tip 10% and in other countries i have been they sometimes refuse to take tips at all. For me it looks like in many restaurants in the US the tip is part of the paycheck.