A fair few
I used to work out of a council van with a team, and any time our driver almost caused an accident he would kick off, then we'd all have to jump out the van to back him up 😅
I've had a few flashes myself when someone has done something stupid, on one occasion very recklessly flying around the block in an attempt to cut them off and 'whatever', but thankfully caught my senses beforehand.
One I had in my work van a few weeks ago as I was at a T junction waiting to right turn onto a carriageway, my van was a bit sluggish and took longer to turn than I expected and a small hatchback approaching had to slow down and wasn't having it - headlight flashes, horn held down and all (they had plenty of time to see me), then they went to zoom by me and REALLY aggressively cut/lurch in in front of me at speed, I mean like less that a meter ahead and the intent was v much to scare me or make me crash, deffo dangerous driving/criminal.
I don't know what the hell he thought I was going to do but I his the gas and essentially went to ram him... he had to accelerate away in a hell of a hurry to get away and he didn't stop till he was well out of sight 😅 I think he must have realised that a 4 ton van hitting him would probably smash him violently off the road, and given it's all on camera no court would have convicted me 🙄