In my house, there's a big black tank thing in the basement (I think it's an oil tank or something). I used to think it was a cow.
A childhood belief about basements

others believed things like this
- I used to think that the TV show "Shark Tank" involved actual sharks in a tank.Anon
- My parents used to own a Restaurant. I belived the lobsters in the tank were pets.— Ned
- After seeing Thomas the Tank Engine, I believed that all the locomotives in the world had a face.— Joe
- i used to believe that the basement had monsters in it.Anon
- I used to believe a spider monster was in my basement— Kelly bulanek
- when i was little i used to believe that darth vador lived in my basement, and i was scared to go down there.— Jilli