Their lives are just not long enough - or perhaps ours are too long. It seems the dog embodies so much of what we wish we could be. Ever faithful, affectionate, loving, patient, obedient, happy, living each moment, and above all, forgiving.
When the Man waked up he said, "What is Wild Dog doing here?" And the Woman said, "His name is not Wild Dog any more, but the First Friend, because he will be our friend for always and always and always." — Rudyard Kipling