5 head blows of the cement and gets up and walks it off? Ok?

For not following threw on killing the dude, he sure as hell came close? I know 2 buddies who died from head tramas. Counted 5 blows to the back of the head, off the concrete. He is not getting up from that! They were not glancing blows either, he put all his force into bouncing his head (back off it, so worse) off the concrete 5 times. Im pretty sure that would have did the trick! Think he over did it a little. No need to break neck, brain swell up an hour later and he would be dead. Enjoyed movie, but that was way to much. And maybe he dont die, but he is not getting up and helped walked out of there. Carried? But no way is he stumblign out of there. Movie would be alot better if not the truth, sad that this does happen. Just no one to the rescue.