As a child I used to watch a bit of soccer/football on TV. I knew they had the red card, which meant you were in serious trouble and the yellow card, which meant you were in a bit of trouble. But I was also convinced there was a green card, which the referee would only get out if you'd been really good. I never did see them use it, though...
A childhood belief about sport

others believed things like this
- I thought a Debit card was actually called a Debt card.— Kilgore
- I thought that a "student visa" meant to use a credit card while travelling.Anon
- I used to believe that every religous Christmas card we recieved was sent to us by God.Anon
- I used to believe that with a credit card, you could get anything you wanted for free.— Anonymous
- I thought that a travel visa was a special credit card which was used for travellingAnon
- I used to think that a Visa credit card was what one needed to be admitted to countries that "require a visa".— Stephanie