I want to give him brain damage
Why do you want to give him brain damage? Thats awful!
He stepped on my shoe one time.
You should not want to give someone brain damage. That is dangerous and it is for a bad reason.
I want the whole world to know how untrustable he is.
What an insane reason to want to hurt someone. Shoes can be replaced, brain damage is permanent. It sounds like you need some professional help if you're willing to go to such extremes to hurt someone over something so petty.