Board Thread:Spoilers!/@comment-26443838-20151223144905/@comment-24674051-20160104162627

For a different reason. Hook punching himself is because he was aware of the person he was, and needed to address that. David, on the Other hand, knows what type of person James is (having been James for at least a few months), and probably has a valid reason to dislike his brother initially.

Though, in all fairness, had James not been an ass and gotten himself killed, David would likely have never met Snow.