Not all drivers do this. I drive the speed limit, or within 4 mph of it. I allow other drivers in, don't slam on my breaks. I signal all lane changes even if no one is there.. . Some people feel that a traffic ticket is such a minor thing that they can flaunt the law. They probably wouldn't feel this way if they realized their actions were similar to walking down a street and firing a gun in random directions. Eventually you're going to kill or maim someone.