If you feel you can't take him on then don't, personally if ANYONE hit me regardless of size or ethnic origin i'd react with extreme pregidous. If he's bigger than you even the odds he's slower your quicker aim for the throat and balls age old but still good advice.

If and when you phone him ask him what the fuck his problem is don't show fear or he'll end up treating you like a little bitch and im sure you don't want that.