(I was working the drive-thru one night, and this occurred while our computer system was rebooting, meaning our card reader was down and we could only take cash.)
Me: Hello! We can only take cash right now, how can I help you?
Customer: Oh, sorry, I only have my card.
Me: I’m very sorry, have a good night!
Customer: I HOPE YOU ROT IN HELL!!!!!
Me: HAVE A GOOD NIGHT.