Watch Your Kids Before Someone Else Does!
I used to run a very local-oriented pub and restaurant. There was a large contingency of parents who would come in on the weekend and get boozed and let their kids run amok.
Once, an eight-year-old kid dropped his pants and started the helicopter for all the guests as they were entering the bar. His parents were complete a**holes who were drunk as f*** on EXPENSIVE champagne. So, I walked into the beer garden and shouted:
Me: “Why is your disgusting little kid swinging his d*** around out the front?!”
They got up and left promptly… and I got the rest of the champagne!
About three months later, I saw the dad in the bar. I eyeballed him, and he sheepishly apologised.
Me: “Whatever, mate. You have to live with him. Just don’t subject our other guests to that kind of behaviour.”

