My mom used to tell me that if you bit your fingernails and ate it that you would get worms inside. It didn't stop me from biting my nails though.
A childhood belief about biting my nails

others believed things like this
- I used to believe that I would get worms if I bit my fingernails. — Leslie
- i used to think that biting my nails would make my fingers fall off! ;)— Cassandra
- i was told that if i kept biting my nails i would grow hairs on my tongue i was 10 yrs old by the way— charlotte anderson
- My Dad told me that biting my nails would result in a large toenail being attached to my stomach lining.— LindaAG
- That bitng my nails would cause worms in my tummyAnon
- I use to beleive that bitting my nails will give me powers to stop being afraid. — scaredy cat