As someone that over decades has ventured into California mountain lion terrain, they scare me more than anything else including black bears, rattlesnakes, and people. Once two of we photographers carrying large tripods rousted 2 large lions just 15 feet away that had been hiding below the edge of a creek ravine. After a frozen moment, they bound in huge long leaps into the undergrowth. That made local news.
I was hiking with a camera atop a large tripod a few years ago on a hilly curving foothill dirt road in brushy chaparral country when I noticed a mountain lion cub about 100 feet further down the road and then the angry mother lion. I slowly began backing up down the road while intently staring at the lion and loudly yelling and occasionally waving my tripod at it in order to show I didn't have fear in my voice. That went on for a few hundred yards, well beyond where the cub would be in danger so understood the lion given hormones in its body had changed to a prey mode. In the OP's video, notice when the hunter fired his first shot, an instant before the lion rose up a bit on its hind feet and rapidly with its two front legs flashed its clawed paws that they use when fighting other animals or attacking prey. The lion in front of me did that 3 times and it is an extremely impressively scary display when just 100 feet from one. As I backed up, I managed to quickly pick up some stones. Even in my olden age have been able to throw rocks accurately, something I did endlessly with other kids. That was just enough that the lion turned around.
