I work at a late-night diner in an airport. A customer has ordered a mid-priced meal and a couple of drinks. He asks for the bill, which comes to around $50.
Customer: “Can I pay with this?”
He shows me a €500 bill.
Me: “Uh, no, sir. We accept cards and US dollars.”
Customer: “What if I say you can take the bill and keep the change. That thing is worth, like, $580.”
Me: “Why would you do that, sir?”
Customer: “Because I want to pay with cash? And I’m rich? And I’m a nice and generous guy?”
Me: “Nothing to do with the fact that while technically still legal tender, the €500 bill is no longer issued and is hard to find retailers that accept it, even in Europe? Or that I can only really exchange it in a European bank? And I know for a fact that the foreign exchange desks in this airport stopped accepting that bill years ago.”
Customer: “Well, maybe, but think of the size of the tip! Worth the inconvenience, surely!”
Me: “I would need to cover the cost of your meal from my own pocket in US dollars first, which surely is an inconvenience. Even if I was okay with all of that, there’s another major issue here.”
Customer: “And what’s that?”
Me: “The €500 bill is purple. That one you’re holding is bright red. I’m going to give you the benefit of the doubt and assume you didn’t know that was a counterfeit bill, and now that you know, you’ll be paying for your meal in US dollars or a credit card?”
The customer glares at me, but pulls a hundred-dollar bill from his wallet and tosses it at me.
Customer: “I want the change! I’m not tipping!”
So much for being a nice and generous guy…