Driving too slow in a fast lane--seriously, if I'm going 70 and some idiot cuts in front of me at 40, they are going to die .
Changing lanes without looking--I had a DB on a LAPTOP cut from an exit ramp that was at a standstill back onto the highway which was going full speed, and I had literally two seconds to decide whether I should jerk into the other lane and risk getting hit or slam into him. He's lucky I didn't decide to slam into him and let nature deal with the rest.
People who start up really slow and take forever to get up to speed because they think it saves them a ton of gas.
People who don't understand how stop signs work or don't pay attention to who was there first. It's not hard: stop, wait, go. Easy.
Morons who race down the lane closest to the sidewalk right after school lets out and little kids are walking home.
People who keep turning left after the light has long ago turned red.
Individuals who insist on backing into a parking space but don't know how to, effectively taking 10 minutes just to back up between two lines.
Driving right next to a car in the opposite lane so no one can pass and drive faster.
Braking completely when making a right turn.
Not turning on headlights in rain/fog/night.
People riding my bumper.
Morons who slow down to 30mph at the first sign of a cop.
People who pass in the left lane going UPHILL while speeding.
Bottlenecks when there's an accident--do you really have to slow down to look at the crumpled motorcycle and red pile of goo under the tarp? Keep moving.
Anyone who is incapable of talking/eating/breathing while driving.
Bastards that drive with children in their lap.
Woo, that feels better.