Blood is kind of an important thing. Even back when science was not much of a thing, or a thing at all, people knew blood is supposed to stay in your body. This is why vampires have always been scary. Not only does they kill regularly, but they need to kill to make them even stronger. This weird combination combines the fear of an unthinking monster feeding randomly, and a malevolent thinking creature killing with way too much efficiency. A lot of times they’re undead, because death is scary, but sometimes they are living and seem perfectly human, because people are also scary. While most basic vampires drain blood, sometimes…