Taking in to account the size, weight and speed of that ball the video is probably a fake but maybe it's real the kid going down was pretty realistic (The ball is moving in the opposite direction a 10 pound ball would push the kid back, watch the impact very closely and you'll see the kids momentum of going towards is not enough to prevent the ball pushing back and knocking them down like that. Also I've had "unrealistic" falls happen but it's possible) I have never been owned like that by another person but I have once owned myself pretty bad. I swung from a pipe and went flat out to the pipe unfortunately a ceiling mere centimetres away from the pipe slammed me from behind forcing the wind out of me and loosing my grip I then face planted 3 meters to a concrete floor and walked away without so much as a scratch.