When I was in high school, we abused `net send` and managed to blast a "all your base are belong to us" message to every PC on campus.

We suspected it even reached other schools in the district.

Good times.

Vyrotek,

Similar story. I was in the 10th grade, and we had a teacher who, in study hall, would make us all watch a projector of her monitor just reading awful PowerPoint slides about whatever topic she was interested in. I wanted to do my homework in that period since I never did homework at home, but she wouldn't allow it. Other people wanted to quietly socialize but could not. Everyone hated it.

So on one of the computers in the back of the room, I used Windows Task Scheduler to do something akin to `net send room-6a-teacher COMPUTER MUST BE REBOOTED IMMEDIATELY` every 5 minutes for the duration of the class. The teacher was not very tech savvy. She once claimed to have deleted regedit, because it looked like a Rubik's Cube and she did not want games on her computer. She never ended up figuring out why her computer messed up during our class but it let us have our study hall back as our own.

In the 12th grade I told my computer networking teacher that story and he said he knew exactly what was happening but not who did or why they did, so he did not want to stick his nose in to a study hall. He said, "I should have figured it was you". I took it as a compliment of the highest order.