I'll be honest, my brother and sister did a lot of hallucinogens. They both slept in the same room during that point in their life. They would run out of their room screaming that they saw one thing or another. My mom was always convinced it was demons. She had no clue they were on hallucinogens. She would search the entire room for any books or anything that could be deemed demonistic. Goodbye Goosebumps books.
My brother and sister also claimed they've seen a lot of ghost activity in my house. Not sure why there would be ghosts. Nobody lived in that house before us. Not to mention that, as I mentioned before, they had taken a lot of hallucinogens.