Hmmm...that's a good question, juju. Lessee, I am completely stupid on:
--Aviation
--Guns
--Motorcycles
--Sports that are not generally played in this country (like cricket)
--Boats
--Fixing a car (I know about cars, and what goes wrong with them, but don't give me a wrench)
Those are the ones I can think of off-hand.
But, I can make a mean sweet potato pie.