YEah, not going to argue with you DAO but pretty sure you know the difference between cracking some one in the head for being an idiot (which this KID clearly was) and two dudes kicking some one half their size in the head up against a wall until he bleeds out of his eyes.
Honestly, I had some tool go over a full colour piece of mine 5 days after I put it up recently with a piece of shit chrome. I know who he is, he's a 19 year old idiot who likes to act gangsta and I know I could play with him like a toy. What did I do? Got on with my job, study and marriage without the risk of going to prison, being jumped by a bunch of his mates one night, having my wife beat up by some idiot out of revenge and all the other silly shit that comes with warring over a little bit of paint. See, my credibility doesn't rest on something so thin as a name on a wall. Bigger fish to fry, my friend.