I despair sometimes ...
In central London I saw a large truck manoeuvring slowly to make a left turn into a narrow street, made narrower by cars parked on each side. A car was waiting at a nearby junction with another street for it to complete the turn. As I walked along, a bus pulled up behind the car and the driver immediately started sounding his horn, obviously not seeing the truck. Losing patience after about a minute of non-activity, the driver pulled out his bus and overtook the car, coming face-to-face with the truck. Two other cars that were behind the bus and had followed hard on his heels were right behind him, so the bus driver couldn't back up again.
In the meantime, the driver of the original, patiently-waiting, car was able to squeeze past the truck and bus and go on his way, followed by a number of other vehicles. Since I turned out of the street at that point I didn't see how the remaining participants resolved the situation.
I might expect that sort of behaviour from some drivers, especially those driving white vans, but I have usually been impressed by the road sense shown by bus drivers. Not this time, though.