What are the movie scenes that freaked you out, made you jump, get terrified, or just plain scream out as they were so unexpected or shocking?

Here's one I found recently again after getting the DVD. It's from a 1998 movie called "Virtual Obsession" based on the novel Host about people who want to download their brain into a computer. Nowhere near as dark as the novel which I have read but still this scene is rather unique in a movie as far as I know. Just to give some background the lead character is a scientist trying to create consciousness in a machine. He has a fling with a female scientist who is dying and wants to use herself as a guinea pig in the experiment. Anyway for some reason the guy becomes the legal guardian of the woman's body and she wanted herself frozen for a time when they might be able to cure her and revive her after the download as she knew she would die. Complications ensue when the coroner wants an autopsy on the body but they are able to take the head so the guy much to the disappointment of his wife takes the head which she finds later frozen in a freezer in the basement. The cryogenic tank had developed a fault. The freezer was temporary storage.

Anyway to cut this short the wife finds the head, husband and friend return with new freezing cylinder, and wife is holding the head then walks out to front porch and throws it into the air. Head then sails across the sky and smashed on the road in a billion pieces.

Screencap of the whole scene.... It's just bizarre.