[mirimir]

> A person traveling way too fast is clearly does care about acting dangerously, why the hell would you want to aggravate that person?

Back before speed cameras, it was useful to aggravate such folk, just a little, so they would speed up. If you gamed it right, you could set up a little convoy, and sit in the middle. At night, you would watch for brake lights ahead, and flashing lights behind.