It's not even about proof. You will almost certainly never meet someone whose been possessed by a demon; and if they claim such they should be seeking serious psychiatric help. Rape victims or people who know rape victims (in fact, anyone with more than five female friends will, statistically speaking, know at least one who has been the subject of assault or abuse) are common enough you need an extreme amount of care and tact if you want to introduce it into a leisure activity. Even if you're not gaming with someone directly or indirectly affected, it's something that engenders strong emotional reactions from everyone. Demonic possession might do the same for a tiny minority who are almost certainly not playing Dungeons and Dragons anyway.Mourn said:Forgive me if I don't see how unprovable interaction with supernatural beings is in any way comparable to the very provable and very real violation of another person.
I only did it in one game, years ago, after extremely careful deliberation. And I probably wouldn't do it again- insofar as I thought the story worked from an "artistic" perspective, it wasn't worth all the worry over how to do it right.