If an annoying acquaintance got spinach between his or her teeth or an embarrassing salsa stain, would you tell them or let them suffer in shame?
I am definitely grateful if someone tells me. In fact, that's how I can tell who my true friends are and who plays by the rules of social contract. I always tell, quietly, on the sly and with a smile. Nobody deserves to walk through life with spinach between their teeth or, worse, a salsa stain on their pants. The horror, the horror.