What are the scariest 'horrible 2 sentence horror stories' you know?

I looked in the mirror. My reflection smiled and blinked without me doing it.

I opened the attic door. A cold hand grabbed my ankle as I stepped inside.

My phone rang in the middle of the night. It was my number calling me.

I opened the fridge and saw a severed finger among the vegetables.

I was walking in the forest. I heard footsteps behind me. When I looked back, there was no one there, but the footsteps continued getting closer.

One of the scariest is 'My phone took a picture by itself. There was a shadow behind me.' Another is 'The clock stopped at 3:13. Then I heard a knock on my door.'

He looked in the mirror. His reflection had a sinister smile that he didn't make. Well, it's really scary because the mirror is supposed to reflect our true selves. But when the reflection has a mind of its own, like showing a sinister smile that doesn't match what we are doing, it creates a sense of unease and horror. It makes you question what is real and what is not. Is there something wrong with the mirror? Or is there something wrong with you? It plays with your mind and makes you feel like you are not in control. And that's the essence of horror in this simple two - sentence story.

He walked into the forest. Every step he took, the trees seemed to lean closer, whispering.

One scary one is 'The old dormitory elevator always groaned. Today, it sang a lullaby.' The sudden change from an ordinary, if a bit concerning, sound to something so much more eerie makes it quite frightening.

I found a tooth on my pillow. Not mine. Then I heard a whisper, 'I'm coming for the rest of them.' I shuddered, knowing I was in danger.