Forum:Heartless atttacks

I have a question. how is it, that if when you are defeated by a heartless, you turn into one? Aren't heartless created when the darkness in someone's heart overpowers the light in it? if so, then how does getting clawed by a shadow, or getting beaten up by a nobody, affect that?

Number XXI: so by attacking you they, like, rip it out of your chest?

Number XXI: I geuss. Thats halo's turf anyways, right?