I was told as a child that pickles were made from cucumbers. I had only seen big cucumbers like in the grocery store, so I assumed the pickling process shrunk them down and made them bumpy!
A childhood belief about gherkins

others believed things like this
- Up until the age of 21 I believed pickles were pickles, I had no idea they were cucumbers.— Jason
- so guess what i learned the other day: pickles came from cucumbers. yes indeed.— jenna
- I used to believe that pickles grew on trees and didn't come from cucumbers.Anon
- that the green bit of cucumbers was poisonousAnon
- when i was a kid, i used to believe pickles were made out of frogs!
weird.
lol— xoxo**~Kelly~**oxox - I used to believe that pickles were hot dogs made from turtle meat.— Jerry Moe the Gimp