I was told by my brother that if I swallowed the seeds of a watermelon, that I would start to grow a watermelon in my stomach, with a bit of help: "Just make sure you don't swallow any dirt!"
I stayed as far away as I could from bare patches of dirt.
A childhood belief about seeds

others believed things like this
- when you eat the seeds from a watermelon a watermelon will start to grow inside your stomache.Anon
- I used to believe that if you swallowed watermelon seeds, they would dance around in your stomach at night.— jaalyn
- If you eat watermelon seeds a watermelon will grow in your tummy and vines will come out your earsAnon
- 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
- I used to believe that if I swallowed watermelon seeds, I would get pregnantAnon