Romeo is only 16 months old, but the little Chihuahua romps with Lena the Boxer at Progressive Auto Center. They're best friends and miss each other when they're not together. Romeo's owner, Rene Robles, got the okay to bring him to work even before the little dog joined her family. "I wouldn't want to leave him home all day," she said. Romeo goes everywhere else with her, too, strapped in a kangaroo pouch on her chest. "He's my baby," she said with a smile. "In fact I call him a baby in a baby dog's body."