I had to put my 16 year old dog down yesterday. We had been together since I was in elementary school. Now I am in graduate school. I know he wouldn't live forever but I still feel like I've been punched and had my innards ripped out at the same time. Today was the first time in 16 years that I went to my parents house he he wasn't there to greet me. I had been preparing myself to find him passed on of old age. Instead he had pneumonia and his arthritis was so bad he kept crying out in pain and he couldn't use his hind legs. The vet gave the option of new medicines, but I didn't want to be selfish and keep him here for me knowing that he likes to daily check the perimeter of the backyard to rid squirrels and rabbits away and that he used to be able to run back and forth all day if he wanted to. Even though I was preparing for it, it still hurts so much. My buddy is gone. The other dogs were really upset when we came home without him last night and today they have been really quiet except for some howling and sad barks.