When I was about 10, I would wake up some mornings with an intense need to pee accompanied by a rather embarassing erection. I used to think that my penis was full of urine, making it firm and much bigger than normal.
A childhood belief about weeing and pooing

others believed things like this
- As a child I believed that cats, when they died, became owls and always accompanied you. — AdryLiz
- when i was young i used to believe a wake was when you waited for the dead person to wake upAnon
- When listening to the radio in the mornings I felt sorry for singers they had to come and sing that early. — Tereza
- I used to believe whenever I got an erection it meant I had to pee.— Adam
- I used to think that a company had boats all over the world making waves, and airplanes making cloudsAnon
- I used to think that Frankie Avalon sang, "Hey Penis, Oh, penis..." instead of "Hey Venus."Anon