That's my buddy Wilby. He's a maltese terrier. He was a neighbors dog, and my brother would walk him everyday, which started when the dog was just a puppy. Then the neighbors got divorced, the mom moved out, and the dad eventually died of cancer. At that point, we adopted him. He was 6 or 7 at the time, but had known us his entire life. Now he's about 10 I think.
I moved out last year and don't get to see him all that often. And to be honest, he is what I miss the most about living at home.