Hey guys, you're making me feel "less than young" at the age of 37!
I was one of those kids who started playing around with batteries and bulbs when I was about 4 or 5. Things just progressed from there. I remember I was 8 when I assembled my first simple radio. By the time I was 11 my bedroom looked more like a mad-scientist's laboratory than a typical boy's bedroom!
So by the time I left school and started earning my keep, there was already practically no distinct dividing line between work and play.
Better that than to be in work you don't enjoy, eh?