When I was younger I saw the movie "Jaws" and for a time believed that there was a shark living behind the couches in our living room, and so on Saturday morning during cartoons I'd have to jump from couch to couch to the doorway to leave. I also have a fear of leaving my feet uncovered while I sleep, at least in my own bed, no matter where I live and no matter how hot it is, my feet have to be covered. I can't think of any basis for this "habit" of mine.
A childhood belief about around the house

others believed things like this
- I used to believe hat the news readers could see into my living room so i sed to undress behind the couch.— henri
- I used to believe the living room furniture would party after we all went to sleep.— Ellen
- A friend believed that they used a tame shark during the filming of "Jaws".— Wendy
- I always had to sleep with my feet under the covers or else speed racer would drive over them.Anon
- When I was a child I used to believe that there were dinosaurs living in the mountains near where I live.— Teacher LM
- When I got my feet measured by the electronic machine, I thought that the machine will squash my feet!— Helen