I always thought a stork left them under a cabbage leaf or something. A very dark, evil cabbage leaf.
Ok, I don't really believe that - a dark, evil cabbage leaf is actually where Barney the Dinosaur comes from. (Ever see DEATH TO SMOOCHY? That movie was highly underrated. Check it out.)
Anyway, I saw another great quote from Guillermo today care of Duane Dudek of the Milwaukee Journal Sentinel - check it out:
Q. Where does the vampire myth stem from us culturally?
A. Back when we were tribally nomadic, I believe we were cannibalistic. And as we became social and sedentary, our collective memory was, how do we deal with the fact that we drank the blood of our enemies or ate their hearts? And so we tried to deal with a mythological creature to explain this.
You can read the full interview here.