When I was very tiny, I used to think that a portrait was just a rubbish picture of someone. Clearly I had deciphered the meaning correctly from the context, but added a bit of my own. I was outraged at the shoddyness that the people talking would accept when they said that they would like a "poor-trait", so I insisted that I would only accept a "bettertrait", oh yes indeed.
A childhood belief about speaking

others believed things like this
- I used to believe that only 'poor' people had to go to the bathroom, that 'rich' people didn't.Anon
- I used to believe that tv people were tiny famous people that lived inside that box with a window called TV.— Miguel Horacio
- that when I growed up I would be a footballer but that was obviously rubbish as I can't play for toffee— Darren
- I used to believe that a brothel was where poor people used to go to get free broth.— Rob. UK
- I used to think tiny little people were inside my mothers radio singing to me.Anon
- I thought that little tiny people changed the color of the stop lights.Anon