If for no other reason than to fight against people who refuse to take light hits, thus forcing you to loose your mind and go on a pownding spree of death just to have your shots counted. You end out of breath and curiously satisfied that you just might have tasted real combat and not some form of foam tag. You get back to camp and talk to your friends, they complain about the rhinohiding, you smile thinking to yourself, "I got them to take my shots".
Warning, you might like it so much you carry this blood lust around with you to other realms. You can see what this mania has done to people like Grik, and Tumbark.