*When I'm passenger and the driver tail-gates the car in front of us, like at 70 mph. That is SOOO dangerous.
*Those in bicycles, please use the sidewalk!
*Driving pathetically slow, on a one lane street, where I can't pass them. I admit I've done that before, even on purpose just to piss off the people behind me.
*Brake spazzes.
*Trucks and buses. Nuff said. They need separated roads for themselves!