Bicyclists who ride on the wrong side of the road.
The guy on the recumbant bicycle. Dude scares the crap out of me every time I have to drive past him.
Old, retired people driving really SLOW during the morning rush hour.
Almost every road that I use in my commute being under construction at some point on its route, all at once.
People who run stop signs and burn rubber to get in front of you... then drive 10mph slower than you were going.
People who pull way to the right in the lane - to turn left.
Can you tell it was a fun drive in this morning?