" Don’t talk or answer your cell phone while talking to ANYONE in person. There are no exceptions to this rule. Don’t answer it when you’re talking to someone at a party. Don’t answer it when you’re eating at a restaurant. Don’t answer it when you’re making a purchase or ordering food; the server or clerk is not a robot; each is a human being deserving of your respect. "

― Brett McKay , The Art of Manliness: Classic Skills and Manners for the Modern Man