[c7b]

Lots of memories, very similar experiences. Fun detail: net send * only broadcasts to machines in the same working group, and since we had classes where each student had their own machine and each class its own group, we could actually use it to broadcast messages to our class, and no one else. We also gave self-chosen names to our machines and used net send as a reasonably practical live chat system during classes.

I also told a friend in another school about the command, and their attempt also ended up sending a message to every machine in a district with over a dozen schools. We knew it would go to the whole school based on the group settings, we were still surprised that it went to other schools as well (still haven't really figured out how that worked). Luckily for them, nothing got disabled, and they kept using net send as a bilateral chat system happily ever after :)