I am left with a profound feeling of satisfaction every time I watch that video

i have no idea why the dude jumped at that guy's car, but quite frankly he got what was coming to him

It could be insurance fraud. In Russia a lot of people try to commit insurance fraud by making it look like they've been run over, which is why dashcams are all over Russia, to prove you're innocent.

If that's the case then well... uh... I guess he might get that insurance money after all. Should pay for a nice funeral.