I can normally sit there oblivious to someone's crazy driving, but my one pet peeve is tail-gating. I feel very nervous when travelling too close behind another car. I think you have to have the right kind of personality to teach someone to drive. Your sim teacher sounds like my Mum! My first driving lesson, in a manual (stick) she expected me to have the hang of the clutch right away. We started driving down the paddock in 1st, then 2nd, and then she was like 'brake, brake, BRAKE!!' There was nothing in the way, but she slammed on the handbrake, and LEAPT out of the car. I stormed off declaring that I was going to move to the city and rely on public transport! My Dad was MUCH better at instructing.