Until I was in my 20s, I thought the word "stuck" in the phrase "bleed like a stuck pig" meant stuck as in stuck inside something, and didn't get how it made any sense. Then one day I realized it meant stuck like stabbed or punctured, and I was like "oh, duh!"
A childhood belief about speaking

others believed things like this
- I used to believe that If I stuck my finger really far inside of my belly button I could touch my insides.Anon
- i once thought that if you jumped high enough in the air, you'd get stuck!Anon
- If you cross your eyes, they will get stuck like that.Anon
- Up until about six, I use to believe that everyone had a different color of pee and I was stuck with yellow.Anon
- I used to think when an airplane ran out of fuel, it stayed stuck in the sky.— BoB
- I sed to think that thw only reason we stuck to the earth was because is spins around!— imgareth