People turning left who never proceed into the intersection until there is a green or an arrow thus holding everyone up.

People turning left to get on the freeway ramp that have the right of way but won't turn until the other traffic turning right onto the same ramp is past. What part of having the right of way don't they understand?

People who throw trash and cig butts out of their car at the top of highway exit ramps and other places. They should be shot!