I know, people are praising these "martial artists." But fuck, they're a bunch of idiots with no decency, or morals. I study martial arts, and I'm embarrassed at this white trash chimp-out. Anyways, if you guys don't wanna get swung into a wall like that, do a spinning elbow into his head as soon as he grabs you. If that doesn't work, then hook a leg with your leg to halt the momentum. (The side you must hook depends on where he's moving you). Then peel off the hands. If he's using any grip that isn't an S grip, you can just grab at the thumbs, and pull. Then spin towards him, and knee him in his balls. Then run because he probably knows how to fight better than you.