Older Son is a mechanical genius. We first became aware of this, lo these many years ago, when he succeeded in unfastening every child carseat we buckled him into. I remember Son, as a three-year-old, getting down on the ground beside a slowly rotating merry-go-round to see what was making it work. I remember him being able to unlock every door in the house. When he was older, he repaired his own car--he told me he just looked at the engine and figured out how everything worked. Later his understanding expanded to cover electronics. But right now he's concentrating on the basic stuff. Yes, while he's here for Christmas, Son has committed himself to fixing the automatic door closer, the bathroom dimmer, and the shower, as well as replacing my broken tail light.
Give him long enough, and he'll fix the world.