I was known as a nutter and a mad man who would shoot up a school, the reason for this was my aggression towards bullies, I saw a kid being attacked\bulled said bully\bullies were not getting away with just a pink-slip or a slap on the wrist.
And for the record, I would never do that, while yes I would beat the crap out of a hostel I would never kill anyone unless necessary, I would probably that kid that stopped an attack, you know, disarm a hostile restrain him\her, I also paid attention to my classmates if they need help, I was there to talk and help in any way possible, but that didn't stop the rest of the school saying "He was planning a attack," or "He's a sociopath," all baseless of course, and the teachers and faculty hated me and never had my side.
No one ever bullied me though, so, that was nice.