You know, what I think would be funny would be for some of these fools to choose a retired Special Forces type for their game. I wouldn’t wish any harm to the victim, but it would be sweet to hear of the attackers getting what they deserve. Especially if the first blow dazed the victim just enough for him to lose rational inhibitions while leaving his training intact.
Carry a good blade if nothing else. There are a few locations on the human frame where major arteries are accessible to a very sharp blade, especially if you’re on the ground and the perp is coming at you.