Once when I was working at an icecream shop as a kid:

About 45 mins after closing, while we were cleaning up and all the cash had been settled some crazy guy starts banging on the window demanding a milkshake.

New girl goes over to explain: "I'm sorry sir we closed at 9, all the machines and registers are shut down"

Dude totally loses his shit. "I didn't know you were closed, I though you were open until 10, I demand a milkshake NOW!"

Sir, even if we were to try to, the registers are all closed, we couldn't ring it out.. "

" THEN JUST GIVE IT TO ME FOR FREE, I'M NOT LEAVING WITHOUT THE MILKSHAKE! "

Poor new girl is now visibly frightened, we are telling her to just walk away and ignore him"

Dude completely loses it and starts smashing on the window, culminating in him using several really offensive slurs and SPITTING on our window.

All because he thought we were still open, as if that's somehow our fault/responsibility.

He just could not logic the fact that what he "thought" is completely out of our control and we aren't going to reopen the shop because he thought wrong