There was a guy in Rolla, Missouri, the literature "servant"/territory "servant" who seemed to have dozens of demon stories to tell the young kids (especially) after the Thursday night TMS/SMtg.(J.Matth ews) He and his wife were young, very average JWs, and I wouldn't have thought to question his truthfulness at 9 years old, but my father, then the congregation servant (=PO) once pulled me aside and said not to pay any attention, they were just stupid ghost stories, and that he didn't believe them and that "they" were going to ask Bro.Matthews to stop telling them. The 10-13 year old girls seemed completely mesmerized by his stories, and loved to retell them as proof of their own unbelievable stories. This brother never lost his position in the congregation, exactly, but I do remember it was a kind of a shock to re-evaluate whether a servant could be deliberately untruthful.
We had a lot of haunted house stories in Missouri. I was a complete non-believer in ghosts and would gladly walk through dozens of these supposed "haunts." So I was surprised when one of my studies started having demon experiences. It was just a "normal" young couple who finally got baptized but complained often of the sounds of dishes being thrown around the house in the early months of the studies. Shortly after baptism, the new sister announced to my wife that she had had a dream and that she was going to soon have her husband (me). Another single sister, my wife's age, at a party, in a corner with just an elder and my wife and I, picked up a Black Sabbath record, and started going into a rant about how this group was demonized and how my wife must know all about these demons, and she started in on all these extremely vile accusations about relationships with demons. She actually began to look "demonized" although I would now classify it as "high". We laughed it off incredulously and I said I'd talk to her about her motives some other time. When I brought it up the next day with the elder who was sitting there silently, he said he didn't hear a thing! He just tuned out and thought we were talking about some rock group.
Since JWs I've never heard a demon/ghost story, but had already thought of them as somehow tied in with the "chemicals of puberty" and adolescent mental confusion, but in these last two cases of adults, there also seemed to be some other form of sexual frustration and possible "medication" I'm assuming. The latter sister claimed to be of the annointed, by the way, but wasn't counted even though she partook.
Gamaliel