For years I was under the impression that the sailing boat that started with a 'y' was pronounced "yatchet".
No-one told me :-(
A childhood belief about speaking

others believed things like this
- When I was little i thought lb for pounds was pronounced lubs, and i called them that for 2 years. Anon
- I used to believe that the last line of Row Row Row Your Boat was 'Life is butter dream'.— Mindless Misfit
- After I saw the Wizard of Oz, I was under the impression Kansas was black and white.Anon
- As a child i was under the impression that the huge power station chimneys were cloud makers.— scruffyoik
- i used to believe that 'island' was pronounced 'is-land' instead. I know im not alone on that one! :)
— Da KornMeal - I used to think that New York was pronounced "Yew Nork"Anon