I read this next one and immediately thought of a friend who'd been told they looked "old and fat" upon seeing an acquaintance. Ugh. How awful. I wish they'd read this tidbit from Carolyn Hax's 3/22/09 column in the Washington Post:
My mother told me that if it can't be fixed in five minutes, with the materials at hand, then don't mention it. So, an unzipped zipper, doughnut crumbs on your shirt, parsley in your teeth -- all fair game to bring to someone's attention. Height, weight, stain on clothing, size of nose -- off limits.