A while ago I had a dream I was writing my pokemon story, and in the story somehow one of the characters (a scyther) grew an extra head. I found this plot twist suitable and posted it, then a while later (the dream skipped ahead in time) I was filled with regret when I realized "wait, I don't want that character to have two heads!" So I scrambled to edit it before anyone commented.

I've had a whole lot of really weird, vivid dreams though. Perhaps I'll write some of them when I'm in the mood.