I have an idead for a fic, but I need to know how one becomes a ghost. Nick says it is sort of like choice - "Wizards can leave an imprint of themselves upon the earth, to walk palely where their living selves once trod, but very few wizards choose that path." I was wondering, is this a unconcious descision, or do you sign some form, or, when you die, does some sort of god like person come down and ask you "hey, wanna be a ghost?" None of these seem very likely, so I was wondering what anyone else thought on the matter as it is an essential part to my fic.