Do dogs get more mischievous as they age? When Nikki was an energetic, jumping puppy, I asked a dog-loving friend if he would ever mellow. "When he's old.  He'll just lay around and stay out of trouble." That was over 10 years ago and Nikki is still living the jumping, energetic puppy life. He's like the Peter Pan of dogs, never wanting to grow up. His new favorite game is to stand on his hind legs, wedge his sharp little claws into the pull-out cupboard where we keep the trash can, and … [Read more...]