I got to see something demonstrated on the road that should have been recorded and be shown to everyone renewing their license, and have the answer who was in the wrong in the following situation, which I got to witness from a safe distance:
Four-lane highway, two lanes each direction.
Two cars, one car driving in the slow lane at 60 mph. The other car, in the "fast lane", was - you guessed it - also driving 60 mph.
The problem was that they very slightly overlapped such that no one could get through. I preface this with, both cars contain couples that are discussing things, you know, being oblivious.
I'm marveling at the incredible cluelessness of humans, when a kinda-scruffy-looking guy (SLG) comes up going maybe 70, in one of those classis faux-wood sided/green station wagons from the 1970s (think, the Griswalds.)
So he gets stuck, and this is where it gets interesting. Both clueless drivers ahead think there's no problem, but you could tell that SLG felt that they're blocking him.
First he tries coming up behind Fast Lane Guy, and seeing no response, gets over behind Slow-lane guy. No reaction there, so he goes back and forth a few times, slowly inching his way forward as he becomes more and more certain that they're blocking him on purpose.
Over time, Fast Lane Guy SLOWLY is inching his way past Slow Lane Guy, obvious as being shear chance/luck because it was clear he had no spatial awareness whatsoever.
The moment there was enough of a gap, SLG swerves to the right in front of Slow Lane Guy. What happened next was classis, properly identifying all humans as, in general, morons. He swerves back in front of Fast Lane Guy and stomps on his brakes, completely locking them up.
Fast Lane Guy totally freaks out, as SLG repeats it two more times. Fast Lane guy finally swerves his MR2 into the slow lane, and I could see an animated discussion going on as SLG went on his way.
It was interesting looking at what happened through the eyes of the two parties involved. SLG got pissed at a dude who was "obviously" blocking him and taught him a lesson. Meanwhile,Fast Lane Guy (now Slow Lane Guy #2) was positive that a madman had just tried to crash into him for no reason at all, and it was only his cat-like reflexes that saved them... he STILL didn't get it.
But he was in the slow lane now...
If I had to sum up all my road irritations it comes down to one thing: Lack. Of. Awareness.