When we were kids my sister always played with her belly button. My dad once told her that if she unbuttoned her belly button her legs would fall off. I used to torture her for hours trying to pin her down to unbutton her belly button
A childhood belief about belly buttons

others believed things like this
- when i was young i was told that if i played with or turned my belly button that my bum would fall off — lee hull
- If you undo your belly-button with a screwdriver, your legs will fall off.— Toby
- 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
- I used to think that if i touched my belly button it would unfold and my belly would be inside out forever. Anon
- someone could unscrew my belly button, and if they did, my head would fall offAnon