I believed for an embarrassingly long time that before you have sex you should blow the condom up like a balloon to check for holes.
A childhood belief about condoms

others believed things like this
- I used to believe that if you had to fart and held it in too long that it would cause you to blow upAnon
- when i was little i believed that leprecauns put the holes in crumpets.Anon
- I used to think that if you didn't blow your nose and just sniffed the snot up, you head would blow up.Anon
- i believed that the holes in swiss cheese were cow farts.— lily
- For a long time I believed it was impossible to have sex unless the man was on the top. Anon
- I believed that fairies lived in lamp posts - their front doors were the little holes where the key fits.— Janice