Demon possession is no laughing matter and happens all the time. If your car gets a flat tired, it was demon possessed. If your dog lays a big one on the carpet, its butt is possessed. If a drip of alcohol crosses your lips, you are possessed. The answer to demon possession is of course frequent casting out of demons, divination, Eastern mysticism influenced prayer chants, and of course, keeping a firm, watchful eye out for all indications of demon possession.
Mock the devil…and he will flee from you.