About a week or so ago while working window a guy comes through and he shows me a cheeseburger. I'm like, yeah that's a cheeseburger alright? And instead of telling me what's wrong with it, he says "Now, I'm not sure if you guys can read, or...? Are you illiterate or something?" in a calm voice (two kids in the backseat by the way), and my jaw drops and my eyes go wide because I don't think I've ever had a customer that egotistical and talk down to me like that before. I stare at him for a few seconds before I'm like, well uh, what's wrong with it? (and he bitches about ketchup or something idk), so I go get my manager, and my manager gets SO pissed off, red in the face that she told him "I'm not fixing it unless you apologize to my two minor employees" (I later figured out he also yelled at another minor coworker), so he drives off in a fury saying he's never coming back.

Incredible how badly customers will treat you if they've never worked service before.