I used to believe that there was an giant hole right under the bathtub, which is where all the used water would go.
A childhood belief about bathrooms

others believed things like this
- I used to believe that water towers were giant metal spiders. Don't ask. — Goatgirl
- I used to think that water towers were giant golf tees.— adam
- That an undertow was a giant toe under the water that grabbed people and pulled them under.— mikita Jones
- I used to believe that if I fell asleep in the bathtub I would wake up in the sea.— Brenda
- That there was a zombie living behind the bathtub in the upstairs bathroom.Anon
- I used to believe that if you dig a hole in the ground and put pepper in the hole, the ground would sneeze.— Cookie