User blog comment:Blackendedsoul/Kaido's devil fruit/@comment-175.139.170.169-20160120070833

How about Kaido having a "bad-luck" DF ability?

It works against all his wishes.

Goes like this:

1) Kaido jumps from a high place, in hoping of suicide. Normally one would have died and that is what he wished for but the DF ability worked against him, thus he did not die.

2) Kaido challenges Whitebeard hoping to kill him but sorry, bad luck caused him to lose

3) Kaido jumps into ocean, hoping the natural weakness of DF users will cause him to die. Nope, didn't happen.

You get the gist.