I had a nightmare that I was in Harry Potter's shoes and Voldemort was contained in an SCP facility and he broke out and gave me a really bad, really short haircut. And then he possessed my body and imprisoned Ron, Hermione, and me in marbles and set up a Zelda dungeon to contain us.
It was actually quite terrifying. The facility was in desolate cold and it was like a creepy castle as well that I had to fight through and Voldy had broken loose and terror ensued, but then I woke up.
...and promptly fell back asleep, whereupon the dream started over! So this time, genre-savvy, I immediately stunned and shot to piss the place he'd been hiding in- only for him to jump out of somewhere ELSE, saying "You were faster this time! Crucio, motherfucker," and then the marbling happened. And he threw Ron out the window into the sea and tortured Hermione and kept me as a necklace so I'd bear witness to what he was doing in my body.
It was actually really fucking terrifying, because Ron and Hermione kept sorta switching places with my actual friends, making things way too visceral. Also the haircut was awful.