When I was younger, my parents always told me never to eat watermelon seeds, or I'll have a watermelon grow in my stomach. Even as I was about fifteen years old, I would always get scared if I accidentally swallowed a seed, and I would never drink water after it thinking that it'll help the watermelon get planted. Silly.
A childhood belief about seeds

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
- I used to believe that if you ate a watermelon seed you would grow a watermelon tree in your stomach!!!— Eskimo
- If you eat watermelon seeds a watermelon will grow in your tummy and vines will come out your earsAnon
- when you eat the seeds from a watermelon a watermelon will start to grow inside your stomache.Anon
- If you swallowed a watermelon seed it would grow in your belly— Rachelle
- I used to believe that if you swallowed watermelon seeds, they would dance around in your stomach at night.— jaalyn