Vampires are mythical or folkloric creatures, typically held to be the re-animated corpses of human beings and said to subsist on human and/or animal blood (hematophagy), often having unnatural powers, heightened bodily functions, and/or the ability to physically transform. Since vampires are associated with death horror movies often place them near churches, especially church cemeteries. Church pictures of old European cathedrals, which usually had a cemetery nearby, make great backgrounds. It seems that until the 19th century, vampires in Europe were thought to be hideous monsters rather than the debonair, aristocratic vampire made popular by later fictional treatments. There are things in which vampires have no power against such as garlic, a branch of wild rose, and all sacred things. There are three main ways to destroy a typical European vampire: a sacred bullet, a wooden stake through the heart, or decapitation. Vampire bats are a different story.  They are not mythical creatures and can be a serious problem.  They are common in Central America, do serious damage to livestock, and are responsible for the deaths of some humans. Vampire bats have razor sharp teeth, secreate an anticoagulant in their siliva and live on blood from animals they bite.  They are a problem for cows left outside at night because they can combine to drain enough blood to keep the cow from gaining weight or giving milk.  They sometimes carry rabies which is how they can be dangerous to people.