Most smoke detectors have a blinking red LED light to show that they're on and working. When I was younger, I was terrified of this light because I thought that if I saw it while it was blinking, there was going to be a fire. My fear was so bad that if I noticed the light while in bed, I would hide under the covers so that I wouldn't see it and there would be no fire.
A childhood belief about around the house

others believed things like this
- I don't know why, but for some reason I thought that blinking your eyes powered your speech.Anon
- I used to be terrified of fire-flys because I believed they would burn if they landed on me.— kevin
- i always thought it was Grape Balls of Fire instead of Great Balls of Fire— Courtney
- In "God Bless America" I thought it was "With the light from a bulb" instead of "from above."— Carol
- When i was little i always thought there were little men inside the traffic lights changing the light— Kiley
- I always thought the song Blinded by the light went "Wrapped up like a dousche, another runner in the night"— Dawn