Up until about age ten, I believed that the giant semi-transparent green octopus from the Pirate Ride at Cedar Point (an amusement park we used to visit) was fully invisible, and in our basement. But just as big and mean.
Every trip down there, especially with the lights off, could have been my last. I flew back up the stairs, just knowing those tentacles were coming to get me...
A childhood belief about basements

others believed things like this
- My uncle convinced me that if you ate octopus, the suckers on the tentacles would suck your tongue out— Minnie
- Maryland was actually a huge amusement park, i.e. Merry-Land, like Disneyland. — Julianne
- I used to picture God as a giant transparent poodle after seeing "All dogs go to heaven".Anon
- I used to believe that if I stood at the top of the stairs, closed my eyes and yawned, I flew down them— Sam
- I would turn the lights off and then leg it up the stairs thinking a monster would be chasing me.Anon
- I used to beleive that if you point at a graveyard, it would point back!!(whatever that meant)— scary ashley