Me and my sisters all have sticky-innie belly-buttons and when we were all little our mum used to tell us not to pick and poke at our belly-buttons or they would come unravelled!
My sister still believed this until the age of 28 - when me and my other sister explained it was just one of those things mums say!
A childhood belief about belly buttons

others believed things like this
- i uses to believe that boys wee'd out of their belly buttons.— boys and toilets
- I used to believe that babies came out of belly buttons — kels
- that bunnies came out of belly buttonsAnon
- I used to belief that women had babies by pressing their belly buttons!— amy
- i used to believe that guys pulled out their outie belly buttons and that's how they peed.— Sky
- I used to believe that belly buttons were for putting the salt in while you were eating celery in bed.— David T