My grandparents as well as parents all told me that if i swallowed the watermelon seeds, it'll start to grow inside my stomach and a watermelon tree will grow through the top of my head. Naturally, the theory applied to all other fruits.
I still don't understand what's the big deal with swallowing the seeds? is there really any harm at all?
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
- If you eat watermelon seeds a watermelon will grow in your tummy and vines will come out your earsAnon
- 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 you swallowed watermelon seeds, they would dance around in your stomach at night.— jaalyn
- I used to think that if i ate watermelon seeds they would grow out of my ears.— Catherine
- I use to believe (thanks to my Mom) that if I swallowed a watermelon seed a watermelon would grow in my belly.Anon