My husband and I were talking and somehow we used the word "Guaranteed".
My daughter asked
"Whats guaranteed?"
I said it was something you can count on.
"Oh" she said "You mean 1-2-3!"
A childhood belief about speaking

others believed things like this
- my husband believed, until recently, that the word "several" meant seven of something. — sheryl
- I thought that Count Dracula was the count from Sesame StreetAnon
- My daughter once asked if God was short for Godfrey— keefdave
- i used to say 'our father, who art in heaven, hello whats your name?'— lou
- I thought adultery was when you acted too much like an adult as a kid and wondered whats so bad about that?— Butch McFear
- I used to believe that it would take forever to count to 100— Jeff