I have had my mut (Found him off the street as a puppy, unsure of his mix) since the 5th grade. I was roughly ten years old maybe? He was an old dog. A good one. Didn't seem to have an health problems other then the fact that he was up there in age and wasn't as active as he used to be. Well he was in his dog house last night just chillen but this morning when I awoke to go feed him breakfast he never awoke. So I'm glad and hope he passed quitely in his sleep. Cheers you will be missed.