[kjo]

The old man would have to have a very long left arm. Just my opinion.

[Rebel_Ace]

Using line segments equal in length to his visible arm, you can "stick figure" out where grandpa's arm should be behind B.O.'s back:



He doesn't need "monkey arms", and his hand is being held above B.O.'s shoulder, possibly because the reach made placing it ON his shoulder uncomfortable at the wrist.

Look, you guys can see what you want to see, in my opinion, this photo is PLAUSIBLE, and since it sheds now real light on anything relevant to B.O.'s past, I am merely saying that there are bigger fish to fry, and more worthy of our scrutiny.