Possessed Animals

It's hard to imagine that our domesticated loving pets could actually be taken over by evil entities in such a ferocious way, where they turn on us. There are numerous horrific well-documented historical accounts of our devoted four-legged companions, occasionally being influenced and controlled by unseen forces, either temporarily or permanently. It's often said that the animal kingdom possess a certain kind of "sense" that we as humans are oblivious to. They seem to be accurately good judges of character of people and they seem to see and hear invisible things or beings that we don't detect. If our beloved pets could only talk, what would they tell us?