Was coming back round the M25 with a mate from Thurrock. Doing about 80mph or so in the outside lane, going with the flow of the traffic. As we drew alongside a car with Dutch number plates on it the guy just moved across into my lane then as he was halfway over starts to indicate. I had to hit the anchors and pull right to not collect him, Christ only knows how close we were to them and the armco, and to make matters worse I was nearly shunted up the arse by an Astra that was behind us. The other car just cleared off. To steal a phrase from Top Gear my "arse was going like a rabbits nose".