Quote Originally Posted by Lucifus View Post
I was thinking Kuma once knew Luffy's father, and wouldn't allow any true harm to come to him. Because no matter how you look at it, he's always showed mercy and helped the Straw hats.
He seemed pretty adamant about taking Luffy during the thriller bark arc. Either the strawhats won him over through their dedication to their captain, or Kuma was merely pretending to take him away to the world government.

I dunno, still hard to tell what he was thinking, exactly.