In the 1970s, I was coming back from work on my motorbike when a car pulled out of a side junction in front of me. I had no chance to avoid it, even at only 40mph. I hit the car, with the impact sending me flying through the air well beyond it. Once I stopped sliding along the road, I went to get up to berate the driver and find where my bike had gone, only to find that my foot was hanging off the end of my leg and I couldn't move.
The driver came rushing up, saying how sorry he was and that he hadn't seen me. I am and was a very mild-mannered person but my immediate response was to say that it was no good being ****ing sorry, my leg was broken, my bike was wrecked, it was up for sale etc. etc. I continued with a constant stream of really foul abuse using virtually any swear words I could think of. If I han't been unable to move, I would have no doubt been more aggressive.
With hindsight, I was in an overwhelming adrenaline rush of anger, fear and shock, in no control whatsoever of what I was saying. This seemed to last an eternity but was probably only a minute or two before the pain kicked in. The hospital orthopaedic ward I ended up in was full of motorbike riders with various fractures and accident experiences. I found my own situation was not at all uncommon for those who retained full consciousness at their accident scene.
The point being that if the driver at my accident had been filming, the viewer would have seen a driver full of concern for what had happened and for my condition, only for him to be met with a torrent of abuse. However, it was just my immediate and uncontrollable reaction to the accident.
It is interesting that in the video of this incident, the cyclist calms down completely after a minute and starts acting more rationally but as this isn't sensationalist, the video ends there. My guess is that he was on the bike when this happened and he had gone through the same massive adrenaline surge that I had. Of course, he could just be a tw*t who has seen his bike run over at a distance but the video is not telling all the story.