I used to believe that the reason the Simpson characters were yellow was because they were made of macaroni and that's why Bart looks wierd. It took awhile but when I saw the Simpsons movie I realized they were people.
A childhood belief about cartoons

others believed things like this
- I used to believe Jessica Simpson was a secret character from "The Simpsons"— Lemon Jelly
- When I was 6 or 7, I believed that people could have yellow skin like in the simpsons— Noah
- I used to believe that the people who "colored" The Simpsons ran out of skin-toned crayons.Anon
- I used to think that a movie is made in realtime. I tought that a 2 hour movie is made in 2 hours.— Alexander
- I spent ages wondering what a bart ender was as a child without realising that it was actually bar tender.— Heather
- I used to think shell macaroni was sea shells.— Don Northrup