During my penance in food service in my earlier years, I worked for a while for what was literally the only pizza joint in town that had delivery. (This was well before all the food delivery apps and in fact in the pre-smartphone era.) When we would not accede to whatever ridiculous demand a customer was having a tantrum about and they threatened to never order here again, my boss would just say, "Okay, fine, see you next week."
He was usually right, too.