Old West vs. Big Retail as Horses Invade Wal-Mart April 11, 2002 8:55 am EST LITTLE ROCK (Reuters) - The Old West clashed with the world's largest retailer when two horsemen rode their mounts through a Wal-Mart in the southern Arkansas town of El Dorado, police say. The horses left a pile of droppings and a wake of startled shoppers but did no other damage despite getting well into the food section. Wal-Mart Stores Inc., the world's largest retailer, is based in the northern Arkansas town of Bentonville. "We get some weird stuff down here," Lt. Terry Ward of...