For generations, the women of my family, otherwise avowed makeup fiends, have been refusing to wear eye shadow. My grandmother always insists that "it simply doesn't flatter us, unless you want to look like a hussy," at which point my mother shushes her but agrees.
Incipient hussiness hasn't stopped me from using shadow altogether, but sometimes I do find myself issuing similarly laconic warnings about its dangers to my younger sister and niece. It might be more than a little silly, but there's something sweet about a little shared weirdness. Does your family have any beauty quirks of its own? And have you inherited them, or did you leave 'em in the proverbial scrap heap?