I used to believe that if you clean out the dirt from your belly button you would die. An adult told me that and I believed them. It made sense to me because I knew that's where the umbilical cord came from.
A childhood belief about belly buttons

others believed things like this
- my older brother told me that if i didnt clean every bit of dirt out of the prints on my feet, i'd die— chel
- I used to think that babies were made when you press your mums belly button.
Then a baby would fall out— Chris Hyndman - I believed that if you pushed your belly button, your bum would fall off.— Wendy
- I used to think that if i touched my belly button it would unfold and my belly would be inside out forever. Anon
- When I was a kid my dad told me that if you unscrewed your belly button your bum would fall off.— Ann
- I was told that your belly button is where you put salt when you eat apples in bed.— Shurnuff