I tried playing Slender a few nights ago. I had my headphones in, and connected with my laptop. Sound was on. I knew it was going to be even scarier if I was wearing my headphones, but that didn't stop me.
And then-... "FUCK!! FUCK FUCK FUCK FUCK!!"
I was screaming, and I was terrified.
The funny part?
I hadn't even started the game. It was just Avast.
Avast Anti-virus, a scarier thing than Slenderman.