Snoopy was a Shih Tzu. He died of kidney failure after approximately 6 months of declining health. The last five days were very bad for him and for us. He became unable to walk, eat or drink water on his own. He was 16+ years at the time we had to have him put to sleep. One terrible sad day. We could not stand to see him suffer any longer. He quietly went to sleep.
He had been very close to me especially by following me around the house. Sitting with me in the evening and just generally being a cute little dog-gray and white. He never complained of pain during the entire process of his kidney failure.