Sleepovers can be one of the most exciting events in a kid’s life, but they can also be like walking into the belly of the beast. You go in expecting laughs, snacks, and secret-swapping, and before you know it, you’re dialling 9-1-1 amidst the sound of screams. These Redditors came together to share the most messed-up stuff they witnessed at slumber parties, and their stories range from absolutely hilarious to utterly horrifying. 1. Unsolved Mysteries: Sleepover EditionWhen I was in elementary school, my sister and I got invited to a birthday party. Everything was going fine for most of the ni…