Cops need to learn NOT to try to jump through the window of cars. I have seen many videos on this, many where the cop is killed or seriously injured and every time, it could be avoided by NOT trying to jump through the side window of the car trying to get the keys in the ignition, usually.
This in no way means I am giving the idiot drivers a pass.
That would seem like a good opportunity to toss in a flashbang and drop back watching for people to come blindly stumbling out.