One of my most annoying instances while working retail was when I was the manager in charge of the high end department store I worked at that night.
A big winter storm had started that night and we were closing early so that our employees could get home safely, as it was super icy out. We had been making a lot of announcements saying why we were closing early and every customer had left already when I noticed two women in their 20s come in.
They demanded to know why we were closing early in a very rude manner, all mad that they'd driven over to the mall in a storm (like fools) but wouldn't be able to shop.
I said in a very brusque way, "Because there's an ice storm and it's very dangerous out, and these employees need to get home safely. Let me escort you to the door, because we're closed."
I was so mad that they had the nerve to assume they'd get to put other people's lives in danger so they could buy some clothes they didn't need, so you can imagine how very happy I was to shut the door on their rude and inconsiderate asses.