Mason looks sad to leave and unsure of what the future will bring. Understandable considering his background of being discarded and a shelter dog. No doubt he's in for a pleasant surprise.
My dog still goes bonkers when I get back home as if she's afraid I won't come back. I hear that's typical for shelter dogs.
Rainman you're a good man, and so are the rest of the people that made this happen, and of course the new owners!
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.
