When we had to put our dog down (old age and too many problem, plus she knew it was time) it was a very hard decision. We stayed with her as the vet administered the shot but we all knew it was for the best, she just wasn' t the same dog and she wanted to do things she used to do but just couldn't anymore. If you decide to get another dog I'd recommend getting one that as close to 180 degrees from your former friend to help keep down the comparisons, not good for either party.