[rxlim]

In 1998 I installed the NetBus server on computers in the computerlab at my school. I would then run the NetBus client on a computer in a secluded corner, and watch the reaction from people while I messed with their computer. The best reactions I got from randomly opening and closing the CD-tray. Good times.

[haeric]

We did the exact same thing! This one time, me and my group of similarly nerdy friends sat in a different room and opened all of the CD-trays in the computer lab during a computer class. The teacher came running to the room we sat in, and we were so sure we had been caught. But no, she started explaining that all the computers were acting up horribly, and that we were the only ones who could help her. She didn't know how right she was :)

So we helped her naturally, undoing our own work and uninstalling NetBus. I'm not sure she ever figured out it was us, though.

They DID figure out who was spamming "net send" messages to certain people. A kind of war had started, where people would compete in sending the most net sends to each other, forcing the other side to click "OK" on a message box. It got sort of nuclear once we discovered batch scripts and for loops.

[amiga-workbench]

I got banned off the computers for months for finding net send because the other students abused it.

I just brought a Linux live USB stick with me and did my work that way.

[rosege]

I had a friend sometime around then who did a similar thing at his small office. They would play Age of Empires after work and he would use it to cheat and see where on the map everyone was. He was smart enough to remove it before anyone knew