I just visited a Dachshund rescue shelter and met a puppy mill rescued dachshund named Speck. He's been at this location for 3 years and has never had a true home. He seems extremely mellowed out. He doesn't bark and doesn't seem to get excited about anything. I assume he's probably beat down from such a hard life and possibly even a little depressed. I plan to adopt this little dude because I really want to give him a good home. I just wonder, will he brighten up after some time in a loving home? Are there particular things that I could do for him that might help him become a little more thrilled with life? Perhaps this is partly just his personality. He's 6 years old, so I know part of it is due to his age. But he wasn't nearly as lively as some of the other dogs his age at the shelter. Just looking for advice from someone who is experienced in this area. Thanks!