The shop I work at in the evening uses a wireless speaker network to broadcast music throughout the store. At night, I turn out the lights, turn off the music, lock myself in, and proceed to return clothes to their rightful area. The clothing racks and strollers loom out of the gloom like primordial terro- I mean, tripping hazards. Also, we have mannequins and a long, narrow hallway through which I must pass.
Only problem: The speakers transmit random bursts of static when they don't play music, I'm afraid of the dark, and there's a windstorm currently ravaging the area.
Have you ever heard of SlenderMan? I'm pretty sure he shops at my store.