My granny always used to tell me that if I swallowed my gum everytime, it would get stuck and the doctors would have to operate on me.
A childhood belief about chewing gum

others believed things like this
- My Granny said if I drank milk and ate fish at the same time, I would die.Anon
- I used to think raisons were bits of old people and after my granny died I never at them again— rraisonhaterrt
- I used to believe that doctors could not get sick.Anon
- I used to want to be a doctor when I grew up, because doctors never die, as they can cure themselves.— Stuart
- I used to think doctors were male and nurses were female.Anon
- I used to think that when doctors didn't want to prescribe you medicine, they'd give you a gazebo.— JD