When i was a nipper my mum told me that condoms were sweeties for grown ups - i believed it for years!! :-)
A childhood belief about condoms

others believed things like this
- I used to believe that grown-ups were born "grown up" and that I would stay a little kid forever.— Still A Kid
- When a grown-up is shown as a child, it was actually them, and the film took 20+ years to produceAnon
- When I was a child, I believed that grown-ups didn't lie.Anon
- I thought grown ups were born grown ups.— mea
- My dad once told me that every potato we had ever eaten was grown in his ear.— Shirley B.
- I used to believe that grown-ups were born grown up.— Juleen