Luffy is a rubber man as we know, and we know haki users can hurt luffy but to what point? He seemed to never get any of his bones broken even if he takes damage by haki users. Is it because rubber is still ruber, even if you can hurt the person? Would luffy also have his bones shattered tanking hakai? Or would his internal organs only rupture? There should be a point where luffy gets at least some of his bones broken right? But how would you be able to break a rubber bone? What do you guys think?