I used to believe that the natural gas trucks you see on the road were filled up with fart gas. I thought that people hooked up a hose to their butt and farted as hard as they could,the gas would travel up the hose into the trucks tank. That's why I always thought natural gas was so expensive.
A childhood belief about farting

others believed things like this
- I used to believe that semi trucks were cement trucks, and that actual semis were just big trucks.— Joe Schmoe
- I used to believe that fire trucks were filled with water. — Renee
- I used to believe that when people talked about 4x4 trucks, I thought it meant all the wheels turned.
— tracy - I used to believe that if you farted really hard, you could fart a hole in your pants. How dumb was that?— stargirl
- I thought that ice cream trucks were the only vehicles that couldn't kill you if you got hit.
Anon - I used to believe that the brown UPS trucks kidnapped kids.— Kim