My wife and I have a 13 year old mini dachshund Newman whom we've had since he was 8 weeks old. We are very close to him and refer to him as our first born child. Sadly, he isn't the same sweet puppy that we once knew. He has experienced 2 or 3 major IVDD episodes about 5-7 years ago including one that lasted 4+ months that required heavy steroid use so he could walk again but has rebounded very well and can still run around without any evidence of previous paralysis. He had 7 front teeth extracted recently (I now brush daily and use oral spray) and had 2 non-cancerous tumors removed from the side of his face. He currently takes Denamarin 90mg daily for his liver, starting to build cataracts, and his hearing is starting to decrease. But, overall, his health is 'remarkable' for a 13 year old mini daschund says my vet. He still has a puppy face with a little gray. He sleeps quite a bit and while he still likes random playtime, his personality has changed significantly since my 1st daughter was born 3 years old. At first, he was fine with her and even liked being around her as she would feed him and play with him. She would lay next to him and wrap her arms around him and he didn't seem to care. However, like most 3 year olds, she can make fast movements that would often hit him and make loud noises that would startle him but she loves him and tries to kiss/hug him but he now wants NOTHING to do with her. If she goes near him, he will show teeth, growl, and even try to bite her. At first, they were just attempts to scare her away but now he actually bites her. Oddly, he likes to sit near her and even sleep next to her? He is even aggressive with me if I try and pick him up to move him on the couch so one of us can sit down or just to pet him sometimes. I am really not sure what to do given his age. Can he be saved?