Numpty?
@not that andrew
"what sort of numpty"
Fair play here. I had the same story from a friend, but the user was a senior officer at the Met! But remember how the world was back then. We're probably talking early 1980s. Most of these users had never seen a PC before, and probably got damn all training. They read the instruction that said "Put the disk into the slot on the front of the computer". Okay, there's a long thin slot about the width of the disk and another odd thing with a funny bit of plastic in front of it that's blocking the hole. Looks a bit too wide anyway. I know which slot a lot of people would quite reasonably choose.