I knew a laddie with myostatin deficiency whos nickname was "belgian blue" and looked Greek God Herkulean Ripped. He wasn't tall either so he looked like a solid square of muscle with a head ontop.
To win bets about how strong he was he used to punch cutouts of his fist through plywood. I had a few of those fist cutouts laying about.

Do you know anyone with myostatin deficiency /brit/?