I have a friend who says he really believed this:
When he was little, and the USA's South was still very segregated, he used to try to sneak into the "Colored Restroom". His mother would stop him every time, saying, "It's not for us to use."
He was very upset by this. He thought it was a special restroom where all the tiles were bright colors and colored water came out of all the sinks and toilets. He figured because he and his family were Italians, they could only use the restroom where all the tile was white and all the water was clear.
Makes me chuckle to this day. Since then, I've had this thought:
Wouldn't it have been great if he'd sneaked into the "Colored Restroom", and the entirety of all the great African American authors, artists and thinkers had ever been in there having a party and THAT'S why he wasn't invited?
That would've been much cooler.
A childhood belief about general

others believed things like this
- When I was 5, I thought the "restroom" was actually a place you went to take a nap. Anon
- When I was a kid, I thought you could get arrested if you accidently walked into the wrong restroomAnon
- I used to believe that if you ate while going to the restroom, you would die. — Patrick H Wright
- When I was a kid, I used to believe that females never went to the restroom, farted,or burped.— michael
- i used to believe that everyone had different colored pee. mine just happened to be yellow.— rick
- I used to think that little people in my penis had crayons and colored my pee yellow.— Ryan