My wife's father taught her to drive which started their relationship on a downhill spiral that lasted until he finally croaked some 40 years later. My advice; don't teach them ANYTHING. Once they grow up and get a job, they can get a therapist and straighten themselves out. Look, just buy them an iPhone, an iPod, a laptop, and a high-limit credit card, and you won't have to even SEE them until they're ready for college. Trust me, it's best for everyone.

chas