Pet Peeve, auto edition:
People who ride their brake all the way through a right turn, with no car in front of them, then take 15 seconds to accelerate to the speed limit, taking up both lanes as they slowly move across the road into the left lane for no good reason.


People who drive 15+ MPH slower than traffic, in the middle lane, even as cars swerve around them, on both sides.
Do slow drivers not REALIZE they are slow drivers? Get the fuck out of the left or middle lane! Why are you impeding traffic!?
Cars who yield right of way for no good reason in a parking lot or intersection. YOU ARE NOT HELPING! All you are doing is confusing everyone else. They all think it is your turn to go, so they don't go because they are WAITING FOR YOU! All this does is cause everyone to make a bunch of false starts until someone whose turn it isn't decides to just gun it and go.
Drivers who slow down to 10 MPH under the limit because there is a cop monitoring traffic. I hope you get rear-ended.
Cars who merge onto the highway at 35 MPH then seem to get annoyed when you tailgate and pass them. HELLO!!??!! People on the highway are driving 70 MPH. You are a road hazard. Please find a new mode of transportation.
People who start braking 500 feet from the stoplight, then ride their brake all the way, decelerating at a rate that forces me to use my brakes unnecessarily. People: If you take your foot off the gas pedal, THE CAR WILL SLOW DOWN. You do not need to abruptly hit the brake anytime some car within a football field's distance applies his brake!