Dogs whine when they want something, when they're frustrated, or when they're excited. If your pug's whining gets out of hand, just ignore it. Try to distract him with some other activity, such as practicing obedience commands. As with barking, never reward whining by giving the dog what he wants. If he's whining to get out of his crate or because he wants some of the chicken you're cutting up for dinner, turn your back on him. He doesn't get anything until he's quiet.