When I was about 3 or 4, I was sitting in my mom's room picking my nose and eating my boogers. Well, my mom came up and said "Don't you know that if you pick your nose and eat your boogers, they collect in your stomach and sooner or later a big green worm will crawl out of your mouth?"
I still pick my nose (who doesn't) but that scared me into not eating them, that's for sure.
A childhood belief about picking my nose

others believed things like this
- One day i told my mom that i wouldnt pick my nose until the boogers made it look like i was a walrus— Lotta Thang
- Picking your nose and eating it. Hey! Tastes like chicken and only half the calories— Henry the Seventh
- I used to think there were little booger factories in your nose that made boogers.— Melith
- My brother used to believe that dried out boogers were actually "paving" the inside of your nose. — sm
- Boogers came from magical booger fairies that mined them over night and put them in your nose in the morning.— Vivian
- if you pick your nose, there will be a tune from itAnon