[Nanka]

I would also have to agree with not hexing him due to the threefold law. xD

It seems you are already taking the appropriate actions by not making yourself look like the bad guy as well as warning him on taking him to court. Be very careful because he sounds like he isn't all too sane in the head. Just watch your back and keep your friends close. Don't go near him again because that sounds like you'll be setting yourself up for disaster.