I used to believe that if someone put their finger in my belly button and twisted hard enough, my legs would fall off. This always made me terrified of my brother, I was nine, and he was thirteen, he always tickled me and I was scared he would be the death of me. He always goes for my belly button for some reason, lol.
A childhood belief about belly buttons

others believed things like this
- If you undo your belly-button with a screwdriver, your legs will fall off.— Toby
- I used to think that babies were made when you press your mums belly button.
Then a baby would fall out— Chris Hyndman - I used to believe that If I stuck my finger really far inside of my belly button I could touch my insides.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 if you fiddled with your belly-button too much, my bum would fall off.Anon
- someone could unscrew my belly button, and if they did, my head would fall offAnon