When I worked at McDonald's, there was a guy who was going to quit. He came in, whispered to me, "I'm tripping balls on acid right now and I'm gonna quit today, and it's gonna be funny!" He was the guy who cooked the meats for the burgers, I was one of the cashier flunkies. He went to do his job, and I went to do mine.

So, I'm standing there processing orders and stuff, and this irate-looking customer comes up to me and thrusts her tray in front of my face. On the tray is a burger and seared into it is: "Fuck off". I immediately realize what's happened (the tripping dude is frying words into peoples' burgers), and I just bend over double laughing...which does not make this old lady happy at all! She starts screaming at me that it's not funny, and my manager comes over and calms her down with a $50 book of gift certificates or something.

The manager calls the tripping cook dude over, and tells him he's fired. The dude bends over laughing, pointing past the manager, at more people coming forward with their profanity burgers looking to score gift certificate books too. The tripping dude says, laughing, his pupils all dilated, "I know I'm fired, man! Did you think this was my way of asking for a fucking promotion! Eat shit!" And then he leaves, just like that.

Omg, that dude was just the bomb, he made my whole day! What a way to go out! I don't even remember his name, as I had only been working there like two days, but I will never forget him!

THAT is proper etiquette!