Well I'm left-handed, and play golf right handed. Mainly because I'm right footed and my natural inclination is to stand with my right foot at the back and left foot at the front, because this is how I skateboard.

However, I semm to be pretty hopeless at golf. I'm getting better, but I work really hard at my swing and the amount of effort I've put in in the last 5 years or so doesn't seem to be matched be my progress.

Incidently, I was also pretty bad at tennis.