I would use my awesome powers to teleport myself behind the guy and then give him a chuck norris round house kick to the spine, severing it, and putting him in a wheel chair. I'd claim self defense so I could get away with it.
If he has no weapon in his hand I would grap his hand and arm bar him while holdiing his hand in a key lock. I would then push him away if he stoped. If he continued I would just push down on his shoulder and take him to the ground.
i would say " if you are going to punch me, you better make sure the first one either kills me or knocks me out, because i will do worse to you." if they doesnt sway them and they do hit me, i'd fight back either until he gives, is knocked out, im knocked out, or someone breaks it up.