And Satan laughs at the idea that we have gotten so foolish as to think that we can turn demonic activity into a spectacle for entertainment. Souls are endangered by such folly.
Demons do not heed the commands of any person, no matter how “spiritual” or “in touch” the person believes himself or herself to be.
A demon might, for its own purposes, pretend to be subject to human control. It might, for its own purposes, pretend to respond to one of an individual’s commands. It might, for a time and for its own purposes, even allow the appearance that it has been exorcised.
Psychics, ghost hunters, clairvoyants, mediums, Protestant ministers and schismatic heretics are not capable of exorcising demons. One who believes otherwise is tragically deceived.
Jesus exorcised demons. He gave authority to bind and loose to the Apostles, viz. the bishops of the Catholic Church. Only His authority — His name — His command — can cause a demon to depart.
Finally, since we’re on the subject, if you ever wondered about some of the themes in Blatty’s The Exorcist, take a look at this, and heed the warning regarding who is the demon’s target.