A childhood belief about general

I don't remember this, but my mother likes to tell people: When I was little, my mom told me that if I didn't brush my teeth, they would fall out. One day I arrived at preschool and started crying. My mother asked what was wrong, and I said "I FORGOT TO BRUSH MY TEETH AND NOW THEY'RE GONNA FALL OUT". She told me it wasn't true, but I believed it for a long time anyway.