The Catholic Church recognizes 4 distinct types of demonic activity which include Demonic Infestation (e.g. the presence of evil within an object or at a specific location), Demonic Vexation (e.g. person who experiences physical attacks from a demon), Demonic Obsession (e.g. person who experiences mental attacks from by a demon), and Demonic Possession (e.g. person who has had their body hijacked by a demon with the demon utilizing the victim’s body as though it was their own). Cases of formal exorcism in which a person believes they are possessed by a demon are rare with high ranking Catholic clergy typically seeing 1 – 2 dozen during their career, however cases of Demonic Infestation, Demonic Vexation, and Demonic Obsession are quite common with high ranking clergy typically observing thousands of these cases during that same time span. Although exorcisms are portrayed in media as relatively short exercises, it is not uncommon for those who believe they are possessed to have the exorcism ritual last for days, and for the possession believed to be present to last months or years in duration