I used to think that, because when you burp it feels like lots of air leaving you, you only had so many burps in your life before all of the air left you and you died!
A childhood belief about general

others believed things like this
- I thought there was some video games so hard that if you died on them you also died in real life!— Kakuri
- When I was little I believed when an actor died in a movie, he died in real life.— Ben
- I used to believe that if you held a fart in long enough it would come out as a burp.— Chris
- I used to think that if you were scared "half to death" that you only had one scare left before you died.— Bush Hiddenofsky
- I usd to believe that, all Americans were left handed and we all died when we reached our 100th birthday!— Greg Baron
- I used to believe that if you died you could have 'an operation' to bring you back to life. — Mikey