I don't countenance any attempt to take a shotgun away from a man holding it. Again, Arbrey could have just ran back the other way. The shotgun looses effectiveness the further you go away from it.
Running towards a shotgun is a virtual death sentence, and I think it is only the man's hesitancy to use it that allowed Arbery to survive as long as he did.
Interesting. Diogenes I have really enjoyed this thread as I always do when you are in fighting form.
The fatal mistake is the attempted disarm. A better idea is to get on the shooters side of the weapon. It is contrary to instinct but it can work. You do not take the weapon but you get in so close that he cannot use it.
Emil Yanilov here demonstrating the principle. He studied under the personal tutelage of the founder of Krav Maga, Imi Sde Or (Lichtenfeld).