My Mom used to tell us that if you bit your fingernails, they would cut a hole in your stomach.
A childhood belief about biting my nails

others believed things like this
- i used to believe that if i bit my fingernails then a finger would grow in my stomach— polly
- I used to believe that I would get worms if I bit my fingernails. — Leslie
- I thought a stomach ache was a stomach egg— Catherine
- I used to believe that if you dig a hole in the ground and put pepper in the hole, the ground would sneeze.— Cookie
- I used to believe that a cat's butt hole was on the tip of his tail.— PANTS
- I had a little hole in the wall under my bed when I was little and I thought that Fraggles lived in there.....— Tina