User blog comment:Dmurray1031/Crazy theory about Luffy's Mom./@comment-3242083-20110515090741/@comment-3242083-20110517122513

You guys know what happens when brother and sister procreate? Yes?

Now look at Luffy. What exactly is crazy about that theory? It could be the reason why he is so insanely dumb, some might even call it handicapped.

It is either that or Luffy's mum had a fondness for alcohol during pregnancy.