I watched my friend swap the 'm' and 'n' keys around on the two tech directors keyboards the evening he left after goodbye drinks, the next day they both had to contact the IT support department as it turns out they still look at their keyboard whilst tapping in their passwords... amazing!
I heard about a bug report once, where a guy contacted IT to say "I can't log in when standing up, only when sitting down."
IT guy is like "well that's the stupidest thing I ever heard", but he tromps up to the reporter's cubicle, and sure enough, same thing happens to him.
Eventually he discovers you can only log in if you're touch-typing, because a few letters got swapped, and nobody touch-types when they're standing up.
