When I was little I read a Far Side comic, in which the doctor cuts the umbilical cord and the baby deflates and shoots across the room like a balloon. I used to believe that without proper care in removal of the cord, this could actually happen.
A childhood belief about giving birth

others believed things like this
- I used to believe that babies were attached to the umbilicle cord and then stuffed down the throat grow.— anonomous
- My older brother used to tell me that if I "untied" it, I'd fly around the room like a balloon. — Gullible youth
- I used to believe that fog occurs when someone shoots a cloud with a gun.Anon
- I used to think that the starwars weekly comic wasn't very strong.. duh.— TAM
- I believed as a child that the proper name for windscreen wipers was "lig-logs".— Ray
- When i was young I used to believe if I ate ham fat I was going to inflate like a balloon— a guy