My 15 year old son completed his driver's education class a few weeks ago.   He and I have been out doing a lot of driving together.  I enjoy this time together and I am doing a good job.  I keep calm and give him ownership of the car.  Many times as I sit in the passenger seat, I feel like my dad has settled in next to me and is guiding me on how to teach my son to drive.  I say things like, "Switch lanes when you feel it is safe," or "Turn left after you make a complete stop."  I...