[jtbayly]

My freshman year of high school we had similar access. Mostly used it for auto-installing Doom on all the library computers at once every time the poor admin went through each computer and manually deleted it.

One friend wrote a fake login program that would immediately quit and run the real login program so we could collect credentials.

Another friend got in real trouble though, supposedly for either trying to or actually changing grades. I knew we could get in trouble. But I also never would have considered doing anything other than pranks.

Of course, even pranks can be dangerous. One of my friends found an open mail server (not that there were any shortage of those at the time) and sent some prank emails that could have gotten him in real trouble.