When I read the book "Where did I come from?" in second grade, it mentioned that you didn't have to be married to have a baby. I thought that meant that sperm could travel out of the man, down the street on on the sidewalk, into a lady's house and up the legs of her bed, through her sheets and into her vagina while she was sleeping. A couple of times I peered over the edge of my bed to see if any of them were coming my way.
A childhood belief about reproduction

others believed things like this
- That the white stuff coming out of aeroplanes meant that someone on the plane had just got married.Anon
- I used to believe that when I used up all the sheets in my desk scratch pad, I would be married.— Barb
- I used to believe that a street sign that read "Dead End" meant that there were dead people buried there.Anon
- I used to think that "One, two, three times a lady"
was: "one, two, three times related"Anon - I thought sperm were fish and when I got a goldfish I went around telling everyone i had a sperm— Kara
- I used to believe that a baby's sex was determined by whether the sperm had a picture of a man or woman on it.— David E.