What a gem. This wasn't the case with the OP but I'm amazed at the number of abusive customers I see when out and about. It's rather disgusting that so many adults feel so entitled that they forget how to treat other human beings. I don't think anybody should have to put up with that at work.
I spent a summer working at an amusement park. I was 19 and had just completed my first year of college. One of my rides was the Zephyr train, which was the 2nd oldest ride in the park at the time. The train was
not a round trip. You got off at the station at the other end of the park, where the toddler rides were. There were signs saying this,
on every single wooden post in the line for the train. We even announce this before people get on.
One evening, a man (probably in his mid 40's) absolutely refused to get off at the station. He started insulting me, saying me made so much more money than I did, blah blah blah. Well of course you do, moron. I'm still in college. I was considering quitting right then and there. My manager was with me at the time, and let me take a break. However, she backed down and let the dude stay on the train.
There were things I liked about that job. But there were things I absolutely
hated about it. Customers who didn't pay attention was issue #1. Didn't read
any sign at all. Oh, there's only 2 people allowed per ride car? Yes, moron, it was on the sign at the entrance to the ride. Oh, my son is too small? Yes, moron, it was on the sign at the entrance to the ride. Drove me absolutely insane.