My first job was in a grocery store deli, and let me tell you that is the worst job to have if your mental health sucks. My last few months there were spent hoping to get hit by a bus so I didn't have to go to work. My last two weeks were the worst two weeks of my life. The customers I dealt with were some of the meanest people I've ever interacted with, all over a $7 bag of gross fried chicken and pasta salad.
This was a several years ago, I have since gotten a job in IT that doesn't make me want to die, but this reminded me of one of few funny stories from my time in the deli:
Remember that They are incapable of reading signs in human languages.
We had a Lemon Capellini salad available. Capellini. Big sign in front of it, can't miss it. Pronounced exactly how it looks. Capellini.
More than half of the people who ordered it could not say that word. A lot of people would stumble through the first two syllables and give up. Some people would throw in some extra letters and create a new word on the spot. Most people avoided saying the word entirely ("lemon salad"). At least one person asked for "lemon speghetti," and I think I had two or three people ask me how it's pronounced.
Capellini.