So Hogwarts eventually gets a computer lab. After they understand how to use the machines, the purebloods love them. Especially considering the computers are laptops. Well, one Mudblood is sick of the way the purebloods look down their noses at them and their fellow mudbloods, so they make it so that upon opening the laptops, the awful screamer of Jeff the Killer will pop up, full sound and everything. Most purebloods plug their earbuds into the machines before opening them anyways.
For being assholes, the purebloods get something special. That's right. Free heart-attacks.
A/N: I'm not even sorry I thought of this at like 2 am yesterday in between being asleep and awake and I just had to all right I had to