I used to believe that all your "spare" teeth were kept in the squishy part beneath your tounge.. i've since found out otherwise.
A childhood belief about general

others believed things like this
- I used to think that poop was stored in your buttocks and that's why they're squishy.Anon
- I use to believe in the toothfairy until i found all my missing baby teeth in my mom's jewlery box drawer.— Ashley Bailey
- when i was little i thought that my hic-ups were caused by little man on the back of my tounge, yodelingAnon
- I used to believe that eating burnt toast would make your teeth whiter and would brush your teeth for you.— Natasha
- I used to believe that if I didn't brush my teeth at night, ants would crawl into my mouth and eat my teeth.Anon
- my brother told me that if i ride my bike with my mouth open i will swallow my tounge. Anon