You sat at home and played computer games until you felt someone's presence. Thinking it was paranoia, you continued playing until someone touched your shoulder. Turning around, you saw no one. Hesitantly returning to the game, you try to continue playing.

"Turn around." whispered a low and sinister voice as you focused back on the game.

The voice gave you goosebumps, and when you turned around, there was no one again.