I usaully flash my hazard lights or brakes lights to tell them to backoff...If they don't I then slow down to increase my following distance from the car in front of me (if theres one) so if he stops I've gotmore time to stop slower and hopefully avoid the **** behind ending up in my boot!! Depending on how much they are annoying me, there are a few different things I do. Either I press my brake pedal just enough to get the brake light to come on while I accelerate forward. Usually this increases the distance between us pretty quick since I accelerate forward and they brake. Then if they continue to tail me again, I do the same but once I get a little bit forward, I actually apply the brakes and slow down a bit. They usually come accelerating towards me thinking I'm just doing what I did before. This usually gets them as they have to hit their brakes quick. Gotta make sure you can accelerate out of this situation though. By that time they usually get the point or are that annoyed that they move to the other lane or something. After that I just put my car into 3rd or 4th depending on the speed we're going at and I travel at the speed limit (high revs), then every so often I just let go of the accelerator so I get a fair bit of engine braking and this usually annoys them as well cause I'm slowing down all of a sudden without brake lights coming on. I'll usually combine this one with my windscreen washers to add to the annoyance. Yup, these don't really solve the problem, but if you tail me, I'm going to annoy you in return. Here Here...Thats what comprehensive insurance is for ... slam the brakes on and if they hit you get a new car :)