[gnosis8]

My definition of a jerk is the guy who's driving 10 mph below the speed limit in the left lane. They are often driving a fuel efficient 4-cylinder car. They brake on hill descents to maintain their stalling speed. Then when they've heard enough of your horn and their pupils are constricted enough from all your high-beaming, they finally put on their signal and get back into the right lane. As you redline it past them you notice that they've just now increased their speed to a reasonable 15 mph above the speed limit.