[split] Vampires and Vampirism

['thul]

Hmm... good idea to split this off... its discussed enough to warrant its own topic...


anyways... pretty much all forms of vampires need blood in some way, be it human or not, natural or not.
It does tend to be slightly different in sci-fi though... good example of this is in stargate: atlantis, with the wraith species. anyone with some imagination can see that they are meant to be a form of vampire. (never dying, feed on humans, etc.). Rather than specifically feeding on blood, they feed on life-force.

anyways... on to different aspect...

Why are humans that turn vampire often portrayed as changing personality completely? Going from pretty calm persons to raving monsters? Changing priorities makes sense, like that they have a tendency to find human blood irresistible... slight changes in personality, like traits becoming more pronounced, ok. Going directly from whatever they were before to monsters whose only resemblance to former selves is physical... that makes no sense.