A childhood belief about appearance

For a long time when i was little, i never made faces (like put my nose up like a pig) while i was outside and the wind was blowing, because my aunties and uncle told me that if ou do that, then your face will stay like that forever. My aunties even told me that they knew a girl in their class at school who had done that, and that she always had a screwed up face because she'd done just that.