It's been a while since I drew something, hasn't it? I couldn't come up with something normal to draw, so here's some nightmare fuel!
If You Don't Know who slender man is, you can look him up on google. But be warned. The content you come up with will mostly likely result in insomnia, paranoia, nyctophobia, or some combination of the three.
By the way, if you're sitting in the dark right now, DON'T TURN AROUND.