- When you call a girl Axel because her name is Lea. (But it's soooo funny!) (what I mean is that I do this.) - When you start stabbing people with giant home made keyblades and running around screaming "KAIRI!" or "RIKU!" - When you write your Human Phsycology Essay on "Light and Darkness" and "Hearts and Heartless" ...and blah blah. EDIT: Oh yeah, srry if anyone did this? :D
If they...killed off all of orginization XIII...oh wait.... lol. jking. Pretty much if they killed off or (almost) killed off any of the main characters. Then again, any good writer would never do that...I think.