You know that chapter with Killua with the pin in his head right? Well, I thought it seemed pretty fake because it didn't really seem possible that Illumi could've put that pin in there. ( well nothing in this show is possible is it hehehe) So yeah, it just seemed fake. It seemed like another shortcut for Togashi to end it. It's like he just added that part so it can 'explain' something. And besides, wasn't Killua having those thoughts of running away all the time? Okay well that's my 'explanation' hheheheh I'm not good at explaining things.