fun little fact, in medieval Europe the fear of cats being associated with the devil was so great thousands were killed. as the cat population dropped, mice and rat populations grew. coupled with the unsanitary conditions of the time, the bubonic plague spread so quickly. if they weren't killed, the cats would of kept the rat population under control and many lives would of been saves. but then we wouldn't have the rhyme 'ring around the rosey'.
most nocturnal animals, as well as black animals, like dogs, ravens, crows and bats, were considered evil and killed.