When following a car you must leave a "safe braking distance", when you pull in front of some one you must also do the same for the person behind you, if you dont and have to hit the brakes the person behind you does not have a safe distance to stop because you have taken it, if you are stupid enough to pull in front of some one and only leave 1 car length for the person behind you then you deserve what you get, and as both of you cant understand this common sense rule its only a matter of time before some one hits you too.