ringing the number on the back of a white van. I only ask because this morning on the way to work a parked white van pulled out just as I was starting to overtake. He was of the manouvre and signal at the same time persuasion. I had anticipated this idiocy and avoided any mishap, but as an encore he then turned left down a side street, narrowly avoiding knocking me off. There was a 'careful driving?' number on the back together with a van ID sticker. I toyed with the idea of ringing it, but eventually decided that there would be little point, but has anyone rung and if so what happened?