In order to get me to stop whistling, my grandmother told me that if I whistle, I will grow a mustache. I totally believed her up until the 5th grade.
A childhood belief about hair

others believed things like this
- Grandmother told me if I whistled in the bathroom the devil would come get me because I was whistling for him.— Peanut @ Lake Tawakoni Tx
- When I was little, I couldn't wait to grow up so I could grow a mustache. I am female.— Laura
- I used to think a mustache grew out of your nose hairs. I tried to let mine grow, but it didn't work. — Barry
- i used to believe that u had to learn to whistle to become an adult...i still can't whistle— whistle
- My mun told me that if I ate my breadcrusts I would be able to whistle.— Iain
- I totally believed my siblings when they told me the family was aliens and had a space ship in the garage.— cully