My primary school headmaster told me that if I swallowed chewing gum, it would stick over the flap on my lungs and I would die because I couldn't breath. I didn't eat chewing gum for years after that.
A childhood belief about chewing gum

you weren't the only one
51 of you believed this
- I thought when you chew gum and you swallot it you would choke and die o_o— Courtney
- My Nan told us if we swallowed chewing gum it would wrap itself around my wind pipe and kill me— susan
- I used to believe that if I swallowed chewing gum, it would wrap around my heart and strangle me— "Tusitala"
- I used to believe if you swallowed chewing gum it would strangle your guts and kill you!— David
- My parents told me that if I swallowed chewing gum it would wrap around my heart and windpipe and choke me :-(— Boooooooots
- I used to believe that if you swollowed you gum, that it would stick to your heart and then you'll die.— Ebony