If you were a waiter and had a rude customer, what would you do?

If I was a waiter and had a rude customer, first I would see what I could do to help the customer. I would try to get to the bottom of this customer's needs by asking questions to understand if they were unhappy with the service or just having a bad day. If I was able to help improve the service we were offering, I would attempt to rectify the situation. If the person was just having a bad day, I would try to make it make their day better by offering better service. I would also understand that sometimes people are rude, and I would not let it impact my day. Its better to put good vibes into the world and provide great service.