Eating watermellon seeds will make you grow a watermellon in your belly.
A childhood belief about seeds

others believed things like this
- I used to think that if i ate watermelon seeds they would grow out of my ears.— Catherine
- I used to believe that if I ate a fruit's seeds, a plant would grow in my stomach.— Natalia Castillejo
- I used to believe that if I ate any seeds of any fruit, it would grow a tree in my stomach.— Julia
- i used to believe that if you swallowed the seeds from apples, trees would grow out of your ears!— Scott Davenport
- I used to think that if you ate nuts and seeds that minature trees woudl grow in your stomach.— Gillian
- i used to believe that if i planted some sesemi seeds form a burger i would actualy grow bread!— bam