Parked van on double yellow lines blocking traffic on a very busy corner causing congestion and when the driver was told the only reply he could give was piss off
Seriously dangerous driving, tried pushing in past a row of cars, hitting mine and at least one other persons wing mirrors, then when he realised he couldn't push in, he just swerved I front of me without indication got warning and forced me to do an emergency stop. A few hundred yards later he realised he was about to miss his turn so swerved across 3 lanes of traffic again without indicating or warning forcing another car to brake suddenly.
Polite driver who was patient when I needed some space to reverse and was happy to back up. Makes a change from usual idiots on road.