‘The Buffalo Bills and Kansas City Chiefs have formed a somewhat benevolent rivalry over the past few years, which means that Alan Burns’ Bills backer bar in Parkville sees its highest-grossing weekends when Bills fans travel to the area for the football game. Al’s goes from a neighborly townie bar to a shoulder-to-shoulder party. Stuffed with red-white-and-blue-clad Bills fans, the bar feels like St. Patrick’s Day and looks like the Fourth of July.’