I'm not sure how old I was but when I was pretty little my sister showed me a joke where you push your hands up against your face and say something like "Hi! I'm chubby. My whole family's chubby..." and some other things but I loved the damn joke so much I went around saying it for the rest of the week until my dad said that if I did that to my face anymore then it would stick like that!! And I believed him for a long time.
A childhood belief about appearance

others believed things like this
- I used to believe that if the wind changed when you were pulling your face that you would stick like that— Farino
- If you pulled a face, and the clock struck on the hour, your face would stay in that position.— Jo V...NL
- i thought the line "saving my face" from the KT Tunstall song of the same name was "shaving my face"Anon
- My uncle harry has a very long beard and a hariy face. I used to think he was a wizard.Anon
- i used to spell eight "ate" cuz of the stuped: why was six afraid of seven, cuz seven ate(8) ten joke...— 8
- I thought when Grandma's hens were cackling, they were giggling about some private joke in the henhouse. — Not a farm kid