Drivers who can't turn right without coming to a full stop.
Drivers who can't change lanes without breaking.
Drivers who stop for green lights.
Drivers who merge in front of you, although you're travelling 20 miles per hour faster than they are.
Drivers who drive slowly in the left lanes when there's a quarter of a mile empty in front of them.
Hummers.
For that matter, any huge vehicle you can't see over or around.
Drivers who drive beside you, just far back enough to be invisible in your side mirror, totally in your blind spot.
Drivers who slam on their brakes, merge slowly halfway into the next lane, then signal.
Drivers who block the left lanes, although they're not travelling any faster than those in the right lanes.
Drivers who stop at intersections so far behind the car ahead that they end-up blocking the next intersection somewhere behind.
Drivers who clean their windshields on the crowded freeway, so that soapy drops of wiper fluid spray all over my newly-carwashed and beautiful car, a quarter mile behind them.
Drivers who intend to turn left when the light turns green, but who don't signal that intention until they begin their turn, so that lines of people become stuck behind them waiting for oncoming traffic to clear, when, had they known, they could have gone around.
