I once swallowed a watermelon seed and freaked out afraid a watermelon would start growing. I remembered a couple days before I accidentally ate dirt and so I freaked out because I also drank some water to wash it down so I thought I just sprouted a watermelon.
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
- 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 think if you ate a watermelon seed then after a while you'd become a watermelon
— olga british-girlyman - If you eat watermelon seeds a watermelon will grow in your tummy and vines will come out your earsAnon