Think of it as a least evil move. Sure, you might not get shot by the next road rager, but by choosing yorusel fot uphold the speed limit, you will likley not improve safety. Lets think of a typical 85mph outside lane hogger, often in a BMW. Hes in a hurry, as usual, and also likes overtaking etc. Having you block him in will only make his driving worse, as he trys to find a way past, maybe ducking inside and undertaking you, as some people do, often without indicating, and ive missed at leas tone collision because of my experience telling me the eejit was going to change lanes, and I was ready for when he did. So, basically, you try and police it yourself, your going to cause as much trouble as might potentially be caused by them doing 85mph in the fast lane. Try talking to your local traffic policeman about it. See what they say. Here in the Uk, motorways have spectacular crashed, but the acual death and accident rate isnt taht bad, per mile of road, or even I think miles driven. its the winy local roads with dodgy overtaking situations that are dangerous. Hence another reason not to get too worke dup, and just leave them to the fast lane. FAiling all that, wait till you can get hellfires fitted to your car.