I just read this whole thread - really top posts everyone! Very interesting stuff, and thanks to Josh for posting his original discussion point. I know I've learned stuff from it!
Btw -Just never get
too confident, as I'm sure you know, loggamatt!
On the original topic, what still surprises me is how car drivers (well, humans in general I suppose), can set their minds to a course of action and doggedly [a.k.a.stupidly] follow it through...NO MATTER WHAT!
The ones that instantly spring to mind are the drivers who set off across a roundabout even though traffic is coming from their right side - they look stolidly straight ahead as if you don't exist (therefore through 'magical thinking' they eliminate any danger). Handy that.
That could even have been in the mind-set of that original car-driver: he saw your hesitancy, and felt uncomfortable that there was no definite, reliable situation he/she could readily understand where one vehicle was decidedly ahead of the other. So he thought 'Right, I'm getting ahead', and once the decision is made, there's no altering it for some.
Mind you, maybe he was just a tw%$.