Random question of the day! When I was growing up, as a wee nipper, my dad was always the designated driver to get me and my siblings anywhere. I always noticed that whenever anyone let him out of a junction or let him move into lane on the motorway, he would always give a courtesy wave and a smile. I have subsequently picked up this habit also. However, I've noticed more and more that people no longer seem to do this. Are we a dying breed or are there still a secret band of courtesy wavers out there?!