Dragon being Garp's son-in-law theory is out the window. Always seemed a bit much, of course they're father and son considering the scar association of the Monkey D's shown so far.
Garp putting in work. Got stabbed but was portrayed in literally the best way possible. Shiryu schemed to get Garp vulnerable to harm him then landed the blow before getting decked. Then the Aokiji clash is literally after the stab. Garp's doing great.