Tucker is such a smart and cute dog. He craves attention around the clock and loves to play outside. He knows sit, shake, and lay down. We adopted him from a shelter in 2015 and I'm not sure if he was abused from his previous three owners or what, but he's come a long way. He can be a grumpy old man at times and will let you know with a grumble when he wants to be left alone. He is good with ou...