When I was a kid, I was absolutely positive that there were people who lived in the shadows in my house. (Only my house.) I lived in the rooms when the lights were on, they came in when the room was empty and the lights were off. They slept in the day, of course. If, for example, the light was off in the bathroom or kitchen, or even my room, the shadow people were probably in there. At one point I even knocked on the doors before entering empty rooms so I didn't surprise them. Then, I'd turn on the light, wait for a minute so they could leave the room, then enter. No wonder I needed a night light.
A childhood belief about around the house

others believed things like this
- i believed that if you farted too much in a room and you were to light a flame your house would blow up— the nuclear fart
- When i was little i always thought there were little men inside the traffic lights changing the light— Kiley
- I used to believe that the yellow light in traffic-lights meant Go Faster!— M. L. E.
- I believed that teachers lived in rooms above the school gym.— Kelly
- when i was about 5-8 i used to believe that oompa loompas lived in traffic lights and controlled the lights!!— ~wierd ~
- i used to believe that a ghost lived under my bed and that a giant lived under our dining room table.— nameless