I used to believe that condoms were supposed to go over the momma's breasts after childbirth since they always have milk leaking all over the place. Ya, I was about 9 or 10. Boy was I wrong.
A childhood belief about condoms

others believed things like this
- i used to beleive when you drank milk your breasts would get bigger so i used to look down at them afterwordsAnon
- My sister use to belive the reason mom had two breasts - one to give milk, the other for juice.
Anon - When I first started to develop my breasts I thought it meant I was producing milk— trisha
- I used to think that if you hit a cow with your car, milk (and only milk) would fly all over the place!— Heather
- When i was little I used to think that if you opened a milk carton on the wrong end you would get arrested— Erin
- i used to think "black dog" by led zeppelin started out like, "big-legged momma, see the way you moo."— ginny