In the lazy crazy seventies, everyone wanted to mimic the onscreen adventures of Steve "Six Million Dollar Man" Austin.
Boys would jump off walls, making a scraping sound because it was in slow motion, and run around at ostensibly super-bionic speeds.
Dave Walker took this one step further - by inserting wires down his sleeves and socks, he would take trusted people to one side, show them his ultra-bionic wiring, and tell them that he was no ordinary eight year old boy.
Now over 16, and keen to impress girls, Dave doesn't like me bringing up his bionic past. Which is lucky, as it'd be no fun otherwise.