[CowboyPete]

The jerseying comment reminded me of this brawl I got in in high school between my high school team and another. One of the linebackers on the other team was punching guys and diggin in elbows and such after tackles and the refs did nothing about it all game, either from not seeing it or whatever. Anyway, our tailback, in the walk past and shake hands bit after the game, grabbed the guys facemask and hit him with a bunch of uppercuts. I didn't see how many because he was still doing it once the brawl broke out but it was pretty funny.

Anyway, plain old clothes can be excellent weapons. A jacket can be used to defend against knife attacks. A belt (as mentioned) can rip open some flesh. A puffy winter coat can absorb a lot of the damage from a punch. Etc.