I used to think that the Vacuum Cleaner was pronounced "BATHROOM CLEANER". This was re-inforced by the fact that my Mom kept it behind the door in the Bathroom.
A childhood belief about bathrooms

others believed things like this
- I used to think that "elbow grease" was an actual product of kitchen or surface cleaner.— Carrie
- I used to believe that the "Pledge" of Allegiance had something to do with our "Pledge" cleaner. — Pledge
- i used to think that vacuum cleaners had little piece of space inside them because space is a vacuumAnon
- I used to believe teachers never had to go to the bathroomAnon
- When I was little, I thought it was harmful to eat while you were going to the bathroom. Anon
- There's a bad moon on the rise = There's a bathroom on the rightAnon