I used to believe that condoms didn't roll out, that you had to unroll them and pull them on, rather than rolling it back.
A childhood belief about condoms

others believed things like this
- i used to think that you pull the string on a tampon and it would roll out to make a sanitary towelAnon
- i used to believe the rolling stones wrote rolling stone magazine.Anon
- I used to wonder why people didn't use his first name when they spoke of McJagger of the Rolling Stones.— silly me
- that when it thunder'd it was angels rolling barrels around heaven.— daniel copeland calif,u.s.
- I was sure that Led Zeppelin was the lead singer of the Rolling Stones.— dave
- i used to think that condoms were gum and i tried to buy one once when i was about 8! — silly