I used to believe that if you swallowed chewing gum it would stay in your stomach for 7 years, because chewing gum is impossible to digest. I still don't know whether or not this is ture.
A childhood belief about chewing gum

others believed things like this
- my mom made me believe that if i swallowed my chewing gum, it would form one big wad in my stomach.— mimi
- If you swallowed chewing gum it would make a balloon inside you and your stomach would explodeAnon
- my mother told me if i ever swallowed chewing gum i'd turn into a pig, i believed this for many years.— stuart hayward
- When i was a kid i believed that you died if you swallowed chewing gum.— Jonathan
- I used to belive that, if you swallowed your chewing gum, you'd fart bubbles...— Heidi, Pittsburgh, PA
- when I was seven my brother told me that if I swallowed chewing gum my arm would drop off.— john