I used to believe that erections were something that happened entirely randomly, and so if you wanted to have sex you had to just wait around for one to happen.
A childhood belief about sex

others believed things like this
- When I was a little kid, I believed that erections were caused by the need to urinate.Anon
- Whwn I was like 8 I used to believe woman just got pregnant randomly. Anon
- I used to believe that virgins can't have sex and have to wait till they're not.— [to_xp]Gekko
- i once believed that S.W.A.T.
standed for sit,wait,and,talk.
lol!— Hawk - You had to wait an hour after eating ANYTHING, even one M&M, before swimming. Anon
- I thought there was only one copy of a movie and you had to wait til it got to your town,— quagmire