I'm with neither on this one. Both parties were wrong in this. Even though stage diving is kind of a tradition in rock and metal music, having musicians themselves starting it and encouraging it some decades ago, it still doesn't make it a smart, wise and safe choice. I think every concert goer is mature enough to understand the risks of the actual action and if not and he's unlucky then I don't think anyone else is to blame. Add to that the incidents with Dimebag and Blythe as people have mention and the fact that barricades and security means the venue and musicians don't want you to do it, so DON'T do it. Kirk on the other hand over reacted and was not even apologetic on his statement. I get all the reasons why he would react as he did but it would take milliseconds to assert the situation after opening his eyes. That was just an emotional outburst and if he did managed to hurt the kid he could be liable to a lawsuit. He can claim tiredness, lack of equipment and previous incidents but they are there to entertain an amount of people that outnumbers them with a music genre that isn't exactly calm and soothing. When you have this amount of people anything can go wrong but 99.999% of the times doesn't. If you're fired up expecting trouble in any venue then that's all you'll see. So yes he is entitled to defend himself but after seeing the footage he could have said: "yYeah I didn't understand the situation correctly sorry for the kick".