Intense Horror Movie Scenes That Went From Zero To 100

List Rules
Vote up the most shocking horror movie scenes that caught you off guard.

Horror movies are awesome. They have one-of-a-kind kills, terrifying jump scares, and great twist endings. Some carefully build tension leading up to an ultimate scare, but others include scenes that no one can see coming, leaving even the biggest of horror heads in shock. These out-of-the-blue scenes can be violent, gory, or even a little bit of both. The horror movie scenes listed below happen so quickly, it's hard to mentally prepare yourself for them. 

Vote up the horror movie scenes that got super intense super fast.