E ach day I drive 20 miles to and from work on the highway. It is not a good part of my day. More often than not it is bumper to bumper, in both lanes, moving at extremely high speeds. If you leave a safe distance between you and the car in front of you it often angers the driver behind you, and people will pass you, and cut you off just to get one car length ahead.
T here is also a concern about road rage.
If you toot your horn, or even look at the offending driver, you can find yourself in an unpleasant and dangerous situation. Consider what is gained by driving at high and dangerous speeds. At 75 mph it takes 16 minutes to go 20 miles. At 65 mph it takes 19 minutes, and at 55 minutes it takes 22 minutes. The time saved by driving at high speed is not worth the risk of your life or getting to meet a nice officer in a sharp looking uniform.