Back when I went to Basic Combat Training with the US Army I weighed in at 72 pounds and, at 4'8", was a puny weakling. Bigger guys were always kicking sand in my face and stealing my Coca-Cola as well as my girlfriend. Six months later, after good Army chow and training, I stood 6'2" and weighed 200 pounds, all muscle (except my brain). And the next time someone kicked sand in my face I taught him who was boss!

He was -- I'm not going to get hurt if I can avoid it.