I worked in a print shop back when it was common for presentations to use big overhead projectors, and the presenter would use old-school plastic sheets (called transparencies) that would be projected on to the wall. A customer called in.
Customer: “I want a double-sided transparency. I figured I could save money on plastic sheets.”
It took a while to explain to them why that was impossible. All the while, they insisted that I was just trying to get them to pay more than necessary. They had to come into the store for me to show them a sample before they understood the problem.
From then on, we would all use this as a prank call on new employees. Everyone agreed not to answer the phone, and then we’d call the store from a cell phone and ask the new guy to pick it up. The prank-caller would get really hostile, demand that he produce the double-sided transparency, and insist that he was screwing us out of our money and that we’d done it before. It got a pretty good laugh out of everyone who received stupid customer requests every day, and it was sort of a “hazing” ritual at the shop; we all got prank-called on the first week.
We got this new guy, and I called him with the prank call.
Me: “How much would it cost to get a transparency printed double-sided?”
New Guy: “Umm… hang on. Um… I guess it would be a single-sided price plus single-sided customer-stock price? So, like $1.49… but I don’t know.”
Me: *Pauses* “And that’s for double-sided transparency?”
New Guy: “Yeah.”
Me: “And that won’t be a problem at all? Printing double-sided on an overhead transparency slide?”
New Guy: “No. We can print double-sided.”
I was his supervisor at the time, and as much as we liked to have fun, I had to stop and admit the prank and actually take him over to the machine and walk him through why that was impossible.