Hello Eudora, it's definitely not you!! I agree, it's very sweet of you to adopt an older dog, and with that comes the possiblity that there may not be a lot of time left. Bless you and your dad's heart for taking Sugar in. I'm sure she lived out her last happy days with you and is smiling down on you from the rainbow bridge. It's always hard to lose a pet, I'm so sorry to hear about the loss of Sugar. **hugs**
Karen