Food and family are two very important components of all of our lives, and that certainly goes for our pets as well. It's no wonder that they're so eager to join us when we gather around the table for dinner. And it's hard to say no to those wide eyes or persistent paws encouraging us to share from our plates. But this behavior can quickly turn from endearing to annoying, and once established, it can be hard to stop. Animal behaviorist Dr. Sophia Yin talks about how we may inadvertently train our pets to beg for food ... and how we can get them to stop.