Real Danger on A1

I use A1 regularly.  Usually Sunday is quiet and boring.  I saw one accident and broken down cars, no surprise there.  Then a car and a lorry pulled out from a service station, and the idiot in the car thought he would over take the lorry using the second lane at 50mph.  The car in front of my slammed on his brakes, and I slammed on mine.  Luckily nothing was behind me, one fewer hazard.  Horrible!