Experienced driver here - if I add up all the miles, I'm probably near a million, over all conditions and terrain. Driven in the US, Canada, Mexico, and the UK.
Nary an accident that was my fault. I have been run into twice, the other drivers got tickets. I've also gotten a couple local government revenue enhancement notices/certificates of achievement, but those I consider those badges of honor more than anything else.
*My* driving is just fine, thank you very much. When I drive, I *drive*. That is, it's an active event, it's not done passively.
The main thing I've learned is that no matter how much people would like to "teach others a lesson" it doesn't work. At least in the US, there are simply far far too many poor drivers - there's always another idiot pulling a bonehead move down the road. On top of that, many of these driver are so poor at driving, they don't even know what they did to earn your ire.
It's not worth it.
Having said that, well of course there are driving habits from the right side of the bell curve that particularly irk:
* Driving without passing in the passing lane. In most states in the US, this is illegal. So, taking Hellhammer's example - if he was on a dual carriageway - if he was going 80 in the passing lane AND NOT PASSING then he would be in violation (apologies to HH if he was talking about just a normal one-lane road, of course).
* After merging onto a highway, IMMEDIATELY getting out of that lane and moving into the next lane over. I see this so so so much. People, if you've just gotten onto an expressway or interstate, pay attention to the merge signs, that's what they're there for.
The combination of the above two points sadly leads to the "slow" lanes being the most uncongested and therefore most suitable for passing.
* Not turning right on red when there's a sign saying "Red Light Camera." For some reason there's a large chunk of the population that thinks that this is equivalent to "no turn on red." Stop for one second at the line, then go = no ticket.
* Not entering the intersection to turn left when the light is green. So many people stop short and sit behind the stop line even though they're supposed to be IN the intersection so they can turn given either a gap in oncoming traffic or the light turns yellow.
The two above are likely a side effect of cameras once again. Those abominations I will leave for another thread...