[@Ambra]Well, growing up as a thug who participates in local gang brawls, you'd have to have some form of fighting skills. Otherwise, I would need to change his background entirely if thats not what you wanted.

I guess I wasn't clear when I said self-taught martial arts - basically, Kevin was able to win through aggression and brute force rather than honed skills and techniques. He has an [i]impression[/i] of how martial arts work, but it's all second-hand guessing and sloppy. 

I hope that's ok!