Recently, a family friend has passed away and left her puppy with no home. We have been strongly considering taking her in, the biggest problem being our current dog. He is 8 years old, and does NOT like other animals. He has been spoiled rotten his whole life and has always been our only pet. We have introduced the two before, and he has not wanted anything to do with the puppy, and snapped at her twice. Our biggest concern is that the introduction of the new puppy will cause mental stress to our current dog, and cause him to die prematurely. We don't want to ruin his older years by bringing something in that will make him miserable every day. Has anyone heard of this happening? Or will they become used to each other eventually? Does anyone know a better way to introduce the new puppy? We are trying our best to consider all of our options, and do the best thing for both dogs. If letting the puppy go to another home will be best, that is what we are going to do, but we really want to try and help.