Up to the age of 12 I was convinced urinating while in mid copulation resulted in a Downs Syndrome baby.
A childhood belief about reproduction

others believed things like this
- Whenever I saw a picture of a whale spouting water, I thought it was urinating.Anon
- a friend was convinced that his school was an asylum, and couldn't be convinced otherwiseAnon
- I thought my neighbor breastfed her baby because they were too poor to afford baby bottles. Maybe they were!— Kristen
- on "highway to hell" i always thought it goes "baby see, baby do" instead of "hey satan, payin´ my dues"— Miss Understood
- That because Gerber Baby Food had a baby on it real babies were put in there. Thanks a lot cousin!— Nicole
- I used to believe that a baby shower was a tiny bathtub with a showerhead just for the baby.— Amy