I used to believe that when you cracked your knuckles or your bones creaked that you were snapping the stitches that held you together - when they all snapped you died.
A childhood belief about general

others believed things like this
- I used to believe that Knuckles (from Sonic the Hedgehog) was an enchilada.Anon
- when i was a kid i believed i could make things happen just by snapping my fingers like in mary poppins!!Anon
- I used to be afraid of moving my wrists incase i snapped my veins and bled to death.— Tender veins
- I used to believe that when you cracked a mirror your reflection would come and take over your body!— XxXAbbeyXxX
- When I was about 4 or 5, I used to believe that instead of bones, we had metal pipes. — TL
- I used to believe that the chunks in chunky peanutbutter were actually bonesAnon