I used to believe a cornucopia was corn on the cob with many other vegetables around it, because I misheard "horn" as "corn" when I was learning what it was, and I think the name didn't help, either.
A childhood belief about general

others believed things like this
- I used to beleive that corn was pigs teeth. And when it was corn on the cob, I thought it was the jaw.— Brianna
- My uncle told me that if I didn't wash my ears when I took a bath, corn would start going out of them.— Ebod
- When I was little, I had tiny toes and beleived that ducks mistook them for kernels of corn and eat them.— Seguin
- I used to think that pickles were made out of frog skin and corn was old peoples teeth.— mandy
- My mom threatened that if I didn't eat all my vegetables that the police would come and arrest me.— Lisa T.
- I used to believe my dad could honk the car horn by pushing on a mysterious spot on the roof of the car.— sarah b