DEAR MISS MANNERS: Strangers want to make small talk with me while waiting in grocery checkout lines, at bus stops, at the bank, during flights, etc. When this happens, I can’t bring myself to tell these people, “I’m sorry, but I don’t really want to talk,” because it is considered rude. Why is their desire to talk to me more valid than my wish not to talk to them? GENTLE READER: Expecting your co-workers to stick to business is entirely reasonable, and Miss Manners would understand if you found questions about your personal life to be intrusive. (Please send your questions to Miss Manners at her website, www.missmanners.com; to her email, dearmissmanners@gmail.com; or through postal mail to Miss Manners, Andrews McMeel Syndication, 1130 Walnut St., Kansas City, MO 64106.)