i used to belive that if you farted and burped at the same-time your head would blow up or you would shrink because you let to much air out of your body!!!!
A childhood belief about farting

others believed things like this
- I used to belive that when u burped,u farted thru your mouth.
— John - i used to belive if you swallowed gum and then farted, you would blow a gum bubble with your butt.Anon
- I used to belive that if you drank soda pop and ate pop rocks at the same time, your head would blow up. — erin
- When I was a kid, I used to believe that females never went to the restroom, farted,or burped.— michael
- when i was little i used to beleive that if i coughed, sneezed and farted at the same time i would blow up— fart
- I used to think that if you didn't blow your nose and just sniffed the snot up, you head would blow up.Anon