Everybody has some history. I think it is a closed matter for me. But i have seen the other side as well, out of protection that is.
When i was a little me this group of kids would always steal my toys or/and beat me up. One day i got a new toy and they wanted to beat me up. That was one of the rare happenings i unleashed the violent part of my nature and beat the 3 of them up, but focused on 1 when the other kept running away. I left him behind unconsciously in the street, his head swollen and bleeding . His parents put him on another school afterwards. After that i vowed to not loose myself again. Forgot one thing though, you really do perceive everything in shades of red only in a red rage event.