Actually, dogs can get you -- as well as almost any other human -- but it takes training. A new study shows that dogs can learn through experience to recognize facial expressions and differentiate between outwardly expressed emotions.
Animals and humans are, of course, naturally predisposed and trained to recognize emotional cues among their own kind. Recognizing facial cues and emotional expressions in other species, on the other hand, is more complicated. But not so complicated that a dog can't learn how to do it.