Growing up in Dublin, my parents were of the firm belief that the streets of the city were safer without David behind the wheel of a car.  Consequently, I first learnt to drive in my early 20s on the backroads and highways of Michigan, with my future wife, Sari, as my instructor.  There were a number of perils associated with this including my tendency to ignore all traffic signs when focused on the task of steering the car or my habit of stalling out due a chronic inability to synchronize the application of the clutch and the accelerator.  It didn’t help that Sari would burst into a fit of giggles at the moments when I put us in the greatest and most imminent danger and was in particular need of quick and level-headed advice.