I have to agree with the comment that was made about a gobbler beating up a decoy.
Not only did the gobbler walk up to another gobbler/jake, that is in full strut, and it never moved (Still "strutting", by the way...), but when it attacks it, it stays in full strut and takes a butt whoopin...?
Something just does not add up there. Even a deer will run/walk off if it attacks a decoy a couple times and it never moves.
I am not suggesting that turkey are down right stupid, but to give them any more credit than being another animal in the woods that we humans have learned to outsmart is giving them more credit than I believe they deserve.
With all of this being said, we have all seen turkey, deer, etc... do things against the taught norms of their behavior. As a matter of fact, I shot a mature deer last year directly down wind of me. Not only did I shoot her, but I shot at her and missed at 30 yards with my first arrow. She then ran ten feet, turned around, walked right by the arrow (still directly downwind) and stopped at 15 yards. I then dropped her with my second shot.