OK, not a story of myself or someone I know but an idea for a movie I'm thinking of while reading these stories.

You have a world where many kids are possessed vy demons of some kind an chant whit like you See in the comments, but because of the kids it becomes real.

So I have 2 ideas for this:

1) in a really freaky horror way where families are brutally murdered by those monsters and some really creepy shit happens or

2) it's a comedy and there are two protagonists. Both are obviously gonna be some stereotype, but one has to be a southern Cowboy American with a really strong accent using a shotgun and always talking some bullshit about the demon kids. And he goes around "tarnishing" the demons by just straight up shooting the kids with his shotgun. He then says some stupid line and casually walks out of the house to "tarnish" the next demons and that's your movie