When I was about six or seven my Dad told me that the hospital sold corks for children who farted too much to hold it all in! I believed him for quite some time.... at least it got me to go away from him to fart I guess.
A childhood belief about farting

others believed things like this
- I used to believe that if you farted really hard, you could fart a hole in your pants. How dumb was that?— stargirl
- That only men farted. I literally started sobbing the first time I realized I farted.Anon
- i thought that if you held in your fart you burp if you happen to hold both in you explode!— ahh!
- My brother once told me that if you burp and fart at the same time, you'd explode— Aubrey
- I was told in first grade that if you fart burp and sneeze at the same time you would blow up— bob doodle
- I once told a friend of mine that if you held in a smelly burp, it'd turn into a fart. She believed me.Anon