I overheard this exchange in Walmart between two older men, one a customer and the other a greeter offering him assistance: “Can I help you?” “Sorry,” said the customer, pulling out a cart. “I don’t hear so well.” He pointed at his ear. “I flew combat during the war.” “I served, too,” said the greeter. Carl Grossman, an affable little guy, played his trump card in this game of “Me, too.” He leaned in, touching the customer’s arm. “Eight of us brothers were in uniform during World War II.”