We just adopted two puppies from the Humane Society. We have a 14 year old dog. He was not happy!! He lets the puppies know when they get too close, but he is starting to warm up to them. They play like puppies around him. Sometimes in the mornings, he actually will play for a moment or two. It has actually brought new life into him. Give this a chance. Your older pups needs to know that he is still important too, and needs attention along with the puppy. Tincture of time and attention are good medicines. Best wishes
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