A One-Sided Argument

Me: “Your total is $15.50.”

Customer: “Here you go.” *hands me a $50 bill*

Me: “Uh… I’m sorry, sir. I can’t accept this. Do you have another form of payment?”

Customer: “What? Why not?!”

Me: “It’s fake.”

Customer: “No it’s not!”

Me: “It’s only printed on one side…”

Customer: “That’s how they make them now!”

Me: *buzzing security* “Sir, I can assure you that is not at all how ‘they’ make $50 bills.”

Customer: “Do your pen thing! Watch. When it shows up real, you’ll feel stupid.”

Me: *facepalm* “Sure, let’s try the counterfeit pen.” *I make a mark on the fake bill and it turns black* “See? You printed it out on computer paper.”

Customer: “Well… I… THAT’S JUST HOW THEY MAKE THEM NOW!”

(The customer was soon picked up by security who held him until the police showed up. I don’t know what happened to him after that.)