Just a passing thought: The human friendly vampires, in movie, and books, always get their blood from hospitals, and blood banks, to prove they don't kill people. So, what about the people, who need blood transfusions to live? I'm always hearing about how our blood supply is dangerously low. And they are constantly doing blood drives. So, aren't vampires still, at least, risking human lives, when they take blood from those places?
Risking lives of how many? 100? 1000? Millions?
Doesn't matter when the count of their prey is in billions.
