Some years ago I was on a Civil Protection Excercise as the IT and Communications Officer. Part of my Gear was a small printer (can't remember which brand). After I set up the laptops for the team I put the cartridges in the printer and the printer told me, that these were the "Setup Cartridges" which were only usable in the first few months after purchase. And that I was supposed to buy normal cartridges to use the printer.

I was able to get a replacement printer from the place where we were staying, but this situation still enrages me to this day. What if this had been a real emergency?