Getting away from the blackmailing which I know is a hot topic, I saw a theory on tumblr that what if the hand Rumple gives Hook is not his real hand but an idle hand? An idle hand is a possessed hand that is prone to doing bad deeds even though the person himself is not bad. I feel that’s something Gold would do just because he doesn’t quite trust Hook but needs an excuse if something goes wrong.
I really like that idea. And it would make sense of the pic with grazed knuckles on Hook’s left hand. As far as I know this Hook is righthanded (for obv reasons) why would he be punching with his left?
Maybe he was a lefty until he was forced to become right hand dominant?