When I was younger (first grade I think) I came home from school one day and randomly asked my mother "Mommy, is 'duh' a swear?" All I remember is her replying "Yes, dear" and me running off to pray for God's forgiveness for all the times I had said duh. I also urged all my friends to do the same in school the next day. Then, about a week later, during lunch, we asked an older boy something, to which he replied "No duh". Needless to say, we avoided that boy for the rest of the year.
A childhood belief about swearing

others believed things like this
- When a "mean girl" in early grade school asked me if I was a virgin I answered "no I am catholic."— Hilary
- When I was in elementary school I use to think that teacher lived at school at their desks all year long.Anon
- When I was at primary school I thought you had to be at least 18 to swear.— Mike W
- I used to think that if I was home sick that no one else could go to school either. (it was MY school)— kirk
- when I was 6, I believed I had to go to school for the rest of my life— Cody Jarosinski
- I told my son that he used to be in my tummy when he was 4. So he asked me," Mommy why did you swollow me?"
— Christopher's mom