i knew a kid like that i used to swim with. he only had one arm, but he could beat the crap out of everyone in the backstroke. it was amazing, but so discouraging. i also knew a girl whose legs were paralyzed.  i was friends with her sister, who was a really good swimmer.  anyway, she could arm wrestle 18 yr old guys when she was 11 and win. i was impressed.
Can't fight darkness with darkness, only with light.