Had to put down our Great Dane, Buffy, yesterday after 13 years. She was the only dog I ever owned and probably will be the last. I don't think I could go through the last 3-4 months again with another dog. It's just too hard. For a big dog, she really did not have any major health issues. It just ended up being her size that did her in. The hips and knees just couldn't support her any more. And considering that most Danes I've known or read about only live 7-9 years, she had a full life for sure. I will definitely miss her...