Have you ever been sitting on the couch watching TV or reading a book when you notice something move out of the corner of your eye? Many usually say they see a black shadow of a person but when they look toward it it seems to disappear. The first thing we think of when this happens is "Did I just see someone or was it my eyes playing tricks on me? If I did see something what exactly was it? Where did it come from?" These are questions many have been asking and those questions tend to come up more and more every day.