My dad used to tell my sister and I that if we swallowed a watermelon seed we would become pregnant lol We actually believed it.
A childhood belief about watermelons

others believed things like this
- I use to believe (thanks to my Mom) that if I swallowed a watermelon seed a watermelon would grow in my belly.Anon
- If you swallowed a watermelon seed it would grow in your belly— Rachelle
- I used to believe that if I swallowed watermelon seeds, I would get pregnantAnon
- I used to believe that if you ate a watermelon seed you would grow a watermelon tree in your stomach!!!— Eskimo
- i used to think if you ate a watermelon seed then after a while you'd become a watermelon
— olga british-girlyman - I used to beleive that if you ate a black watermelon seed a tree would grow in your stomach— anonymous