For my own part, I am completely down with restaurants choosing to cater to an adult-only clientele. I am in favor of resorts that offer adult-only vacations. And frankly, if there were a petition to stop people from dragging their screaming toddlers to the 10 p.m. screenings of horror movies, I would sign the living hell out of that thing. I am the person who got a mom and her toddler ejected from the audience of a Broadway show, when the mother wouldn’t turn off the phone the child was playing with. (You’re welcome.) But if your establishment doesn’t have an explicit policy, what then is the right protocol when a family traipses in?