[legion]

Back in the DOS days, my dad wrote a program that would reverse (so you saw a mirror image) of the screen if it sat idle for 2 minutes between 12:00 and 4:00 a.m. It was his way of telling his employees to go home...

In college, I installed a "random error generator" on my PC. It was fun to listen to my non-PC-literate roomate swear at the computer. (The same guy who would keep hitting the print button in Word until his document printed...and I'd come back from class to a dozen copies of his term paper.)

In training, we remapped the keyboard of a coworker. The "A" key was "J" and so on. A quicker way to do this is to switch their language settings to Cyrillic or something.

Still, my co-worker's PC's are with them, so I can't do any of these things...