I made up a theory when I was about 5, that every night when I was asleep, all the cartoon characters that I would watch on TV the next day would sneak into the house and climb into the back of the TV before I got up the next morning.
I didn't really believe it was true. I wonder why I made up this 'theory'?
A childhood belief about cartoons

others believed things like this
- when i was a kid, i used to think that if i didn't fall asleep, morning wouldn't comeAnon
- i used to believe that the water in the ocean went away a night......then came back in the morning.— Beverly
- I used to believe that if i swallowed some Play-Doh and made a wish, my wish would come true.— Nadia
- Someone told me mascara was made from bat feces. To this day, I'm not sure if it's true.— Schmoopy
- I used to think I could sneak up on my reflection and catch myself not looking back at me.— Mary Poppins
- When I was 8, I made a plan to become rich by selling cups and magazines from my house.— Kevin