I remember doing this during one of my first years of college. I would usually finish the lab assignments early, so I would poke around the computers and see wh

I remember doing this during one of my first years of college. I would usually finish the lab assignments early, so I would poke around the computers and see what I could get into. I eventually discovered `net send` on the cli, and read through the help to discover that you could broadcast with a wildcard. So, I promptly ran `net send * All your base are belong to us`. The immediate result was giggles from all around the computer lab. As soon as I realized I had sent it to every computer in the lab, I realized I had no idea what other computers I had sent it to. I decided my best course of action was to log out of the machine and switch to another one. About 5 minutes later, a couple people came into the lab, going straight to the machine I had sent the message from. They looked around, asked the room if anyone knew who was using the machine, got a bunch of noncommittal shrugs, shrugged themselves, and left. A couple weeks later, the Messenger service was disabled across the campus. I found out from someone that the message had popped up on every machine on campus, interrupting presentations and leading to some slight confusion on the part of teachers all over.