This falls into the realm of a "demonic" or an "inhuman" type of haunting. It is perhaps of other-dimensional origin, and is often possessed (no pun intended) of a quite hostile nature. Anyone who has up close and personally encountered a demonic entity in action never wants the experience repeated; no one I've spoken to, anyway! It often evinces a form of intelligence (initially similar to a "human" type of haunting) in that it may insidiously seem to anticipate the approaches of the person(s) it menaces, including any paranormal investigators who are endeavoring to rid a home of its presence. Endemic to this most unwelcome infestation is a pronounced psychological instability, distress or unresolved conflict on the part of a resident or residents of the household subjected to the demonic assault. Additionally, experience has supported the observation that someone originally had to have invited in the demon, perhaps inadvertently, either through scrying implements such as a Ouija Board, conducting seances, indisciplined psychic experimentation, performing magic ceremonies or by habitually conversing with unseen presences (imaginary friends?). It should be mentioned here that while some of these devices may at first appear to be utterly harmless and regarded as tools to aid in tapping into one's subconsciousness, the results can be likened to leaving open one's back door in a country setting. Now, you may only have some little squirrels and chipmonks wander into your kitchen, but odds are that eventually you'll find yourself facing down a bear, maybe a small cub, IF YOU'RE LUCKY. And keep in mind, where there's one "bear," others are lurking somewhere closeby!
By "Carl Johnson" from TAPS