When I was younger, my brother told me that if I added a little bit of salt to the water in the bathtub, sharks and whales would appear and eat me up. I believed this until I was about 10. Sad, I know.
I was not a smart kid.
A childhood belief about bathrooms

others believed things like this
- Waves are whales and sharks moving up and down under the waterAnon
- When I was young I refused to drink well water because I thought it came out of whales.— itodd
- When I was a kid, I use to believe, when I put salt in my bath water I will turn into a mermaid.— marletha
- i used to believe there were invisible sharks in the deep end of the pool, thanks to my older brother.— Melissa
- I used to believe all liquids were water-based with things added to it to make different kinds of liquids.Anon
- I thought that veruca salt was green salt— Ninny