I nominate the driver of the unmarked police car who went across a x roads without stopping or slowing, lights flashing in grille and rear window, that I only saw when it was right in front of me. I know the junction well and always slow down as although I have right of way drivers creep out trying to get a better view, if I hadn’t slowed they’d of broad sided me, mised by about 30 feet which ain’t much at 50 mph. On the way home I followed the road they had come out of, it’s narrow with high hedges either side, there is no way they could of known it was clear - it took me an hour to stop shaking.