I'd press charges in this case. That your brother was so nuts as to actually keep choking you after you passed out, is downright insane. I don't know if you means literally "ninjitsu kick", as in he takes ninjitsu classes, but if you pressed charges the school just may kick him out and have his name on the martial arts black list. A person with as little control and discipline as your brother should not be learning the fighting arts.