Scaryduck has a great story about the go-kart building antics of his youth. I too, spent many happy hours with my friends constructing daredevil death machines out of pram wheels and nail studded planks. Kids these days don't know what they're missing - how can a Playstation provide the natural high of walking away from a spectacular high speed crash, uninjured but for two skinned palms and a hole in your trousers?