Driving home from work, two occasions had cars driving so closely behind me that if I were to stop suddenly they would hit me no doubt about it. I drive to the speed limit occasionally slightly over and it was raining too!
Sometimes I really want to just slam on my brakes and let them hit me to show them how dangerous it is! ( Of course I wouldn't but am I being unreasonable to want to do it in theory!?) I find it so intimidating and off putting when I'm driving.