Demon stories I've heard (besides the urban legends we've all heard, of course):
1) My mom's former pioneer partner said that her apostate ex-husband brought home a table that was possessed with a demon. Their son, who was something like 6 or 7 at the time, claimed to have woken up on his bed floating in the air, and it crashed down as he woke up, and he saw a big green wavy demon face (because we all know children don't have active imaginations or nightmares). The pioneer partner toted the table off to a garbage dump or something and tried to convince the guy in charge, who was like, "hey, that's a pretty nice antique table you're tossing out there..." that he didn't want to take it home himself.
2) Mom also claims that another pioneer partner of hers (why are all these crazy women pioneers?) was studying with a medium or fortune-teller or something and that furniture moved around, and the study would stare at the pioneer all spooky/vacant-like and tell her that "her friend" was there and didn't like the pioneer and wanted her to leave. Pioneer partner also claimed that the woman's cat spoke to her (à la Balaam and the donkey?)
3) Mom claims that she had a study with an older woman whose son lived with her. She always felt when in the house that "something wasn't right" but couldn't put her finger on it. One day asked to use the woman's restroom and accidentally opened the wrong door to the son's room - and that there was an "altar to Satan" in his room, presumably with slaughtered goat heads and black occult candles or something. (In reality, probably just a Led Zeppelin poster or something, and the rest is overexaggeration/hype/myth).
4) My sisters swears that a store at the local mall (which sells things like displayable fantasy swords, wizard/dragon/unicorn figurines, etc.) made her feel "wrong" and violently ill when she went inside, because she could feel the demons flying around her and oppressing her from every side. She would make it a point to stalk dramatically out of the store every time we went to the mall. Which raised the question as to why she even went in there in the first place. Sigh.
I always felt like I must be the only person who hadn't yet seen demons. But boy, was I terrified of them. After all, the rest of my family clearly felt their presence, and they couldn't be wrong, could they? Oh. Wait.
Now my family tells everyone that I've gone over to serve Satan and am demon-possessed and have rebelled against Jehovah. No matter how much I tell them that I'm not possessed and haven't rebelled against anybody because you can't rebel against someone you don't believe in and I simply don't believe in Jehovah or Satan or demons anymore, they swear I'm lying (apparently I have motive to lie about such things). This is what these B.S. demon stories do to people.
Edit: I forgot one. There was also apparently a "brother in a neighboring congregation" (no name or congregation name was ever given) who was cocky and arrogant and laughed and said things like "Satan and his demons have no power over me! They can't touch me!" and he was promptly "knocked around and thrashed really bad one night and that taught him a lesson or two!" ...Like they considered it poetic justice of something. I just can't even begin to describe how many things I find wrong with this story.