When I was little, my older brother told me the water that comes out of your goggles when you take them off after swimming was eyeball juice that the goggles sucked out of your eyes. I was scared to put on goggles for weeks.
A childhood belief about swimming pools

others believed things like this
- I thought google was a place where they sold goggles online— google
- I used to believe that putting lemon juice in yours eyes could lighten them.Anon
- I was born brunette with brown eyes and dark hair, i thought people with blue eyes, had water in them.Anon
- I thought that grape juice was called "great juice". Anon
- I used to believe that newborn babies didnt open their eyes for a few weeks like kittens :) — Cash
- My brother told me that I would turn into a boy when I got older. It made me cry.— Sarah