omg I always thought someone should invent this..

OT, but as someone who makes a long commute to and from work, I've developed a tailgating philosophy which is, it's perfectly OK to slam on brakes etc if someone is tailgating you in the middle or right lane of the highway, but if you are in the passing lane being tailgated that is a clear signal to just move over and let the tailgater pass. That is why it is called the PASSING lane.
 
huahaha OMG!!!I have always wanted to have smthing like this!!
but now I was thinking, wat about if I press the idiot one?what people on my back would do?

coz if it was me, i would crash his car!jk..but seriously, i would be more pissed!:P