At high school we were not allowed to play games in the computer lab. Liero fit on a floppy disk so we could hide a copy of it on nearly every computer and play it during every break when the teacher was not present in the lab room. Good memories of nuking the hell out of everyone and filling the screen with Zims and watching the poor worms die! :)
At my school someone yanked the campaign maps and most of the models out of Quake 1 so it fit on a floppy. Funny thing, the school was pretty small and the sysadmin personally knew most of the senior guys, being just a few years older—so he likely regularly hung out with the one whose invention he had to clean out from the machines every few days.
