I was at the zoo several years ago and overheard one of the guys in a high school group (apparently for a biology class) talk about a catepillar he found on the fence. He ernestly believed that the only way they became butterflies was to set them on fire! Naturally, I was horrified and had to set him straight, but I don't think he believed me.
A childhood belief about creepy crawlies

others believed things like this
- When I was young, I honestly believed that I would die before I reached high school. Anon
- I used to think the Senior Center was where all the high school seniors got to hang out and cut class— Jordan
- I believed butterflies taste like butterAnon
- I used to think making straight A's in school was literally writing A's straight. Anon
- I thought that wars had to last four years... just like high school and college.— A. Falk
- We put food in our mouths, so naturally I believed my stomach was in my head.— Timb