I used to think farting was actually a semi transparent light brownish gas or that mustard gas was the same thing. Sort of like smoking passing through your jeans whenever it happens. Also thought it was poisonous for a while.
A childhood belief about farting

others believed things like this
- The song "Reverend Blue Jeans" turned out to be "Forever in Blue Jeans." Who would have believed that?— music lover
- My mom used to tell me if I ate mustard I would grow mustard.Anon
- No passing zones on the highway. How come we just kep passing those signs? — Colleen
- I thought “guerrilla tactics” meant fighting like a gorilla— beating your chest and that sort of thing.— Kai
- I used to picture God as a giant transparent poodle after seeing "All dogs go to heaven".Anon
- I thought farting was magical wind, and if you did it loud and hard, you would be able to move yourself.— Blake