This is a joke why do folk have to do sh!te like this, if they wanna kill them selves then feel free to do so just dont take others with them. I just give my brakes a test when this happens to me but, if they continue to do it i will stop dead and let them hit my car coz then i will get out claim them and leather them for wrecking the ar$e of my car. if i'm in my truck i will stop the bu$$er and let them run up in to the 4 nice big dirty tyres, and if they overtake me then pull in front of me god help them coz i hope their brakes can stop 40ton at 60mph from coming through them or they get a gentle rub from my bumper!!!!!