I thought it'd be a funny thread to not answer too but I'm glad people have. Brain stimulation theory was a nice change to another thread about harmonics (if I'd bothered to write out new answers for each of those I think my hands would be crippled by now). The left hand writing/playing thing's really helped my tapping and today I amazed myself by catching a fly (a blue bottle) with my left hand! Cheers folks!
If I couldn't laugh at myself how could I laugh at someone less ridiculous?