Exhaust inspection

So why is it, almost every time I venture out, some idiot wants to get so close as to inspect my exhaust pipe? Yes the woman in the Red Mini Cooper, with the sad hair do, trying her utmost to push me off the road, these nano seconds that people save seem so important.
Don't get me wrong, I travel at the speed limit, I for one think speeding generally is for the track and not for Dominion Rd, the law seems to think so too.
What is amazing is by the time, we got to the K.Rd I was at the side of her, less frazzled and defiantly with a better hair do. now here's the rub, this will happen about 10 times in  a distance of around 5Kms, so whats the issue here? Is it our lives are so fast paced, that we don't know how to slow down? Is it, we have total disregard for the law? Is it that, we have a total disregard for the safety of other road users? Is it that, a fast car means I have to drive fast ALL the time? or is it that, many New Zealanders, just don't know any better? Answers on a postcard or better still, post them here.