I have dan grades in aikido and judo (lapsed, mind you), have practised t'ai chi for years, boxed as an amateur and to represent my university at heavyweight, have done MMA for fun and took part in numerous judo competitions when I was a teenager. That's on top of the fact I spend half my waking life surrounded by violent offenders. Sadly I still couldn't fight my way out of a room full of disabled toddlers, sleeping ones at that. Complete and utter wimp as it happens, got my nose broke by a girl I turned down and cried, regularly get pasted by my teenage son and got my hand broke wrestling with my dog. Still, I run fast so that helps.