Most humans have a natural aversion to all things creepy, and with good reason. Creepy stuff makes people feel uncomfortable and gives nightmares all the fuel they need. But maybe limited exposure to creepy things could benefit your worldview. Speaking from personal experience, dealing with creepy stuff all day somehow makes everything else in life seem sweeter. With that being said, think of these 17 nightmare-inducing photos as a point of reference for how much scarier your life could really be. 1. The world's most terrifying optical illusion. Those eyes... 2. Don't ever turn your back on sheep, or they'll eat you alive. 3. Such a looming presence. 4. You don't want to get stuck in traffic behind these guys. 5. This is why you don't peek inside cars in the parking lot. 6. Well, that's not untrue... 7. This is how you terrify anyone who comes to your door. 8. "Sleep tight. Don't let the bedbugs bite." 9. I'm not sure I'd feel very comfortable staying in this hotel. 10. A scarecrow for birds and people. 11. This tree looks like it's in a lot of pain. 12. Koalas can be pretty scary 13. A perfect stalker. 14. Nope. Nope. NOPE! 15. "Come and play with me." Uh...I'll pass. 16. The marionette of your nightmares. 17. I think this was supposed to be cute, but it turned out to be disturbing instead