My heart is broken. We had to say goodbye to a cherished member of our family — Trinity, our 12-year-old, three-legged clown of a dog. For those who don’t remember her story, she came into the Aiken County Animal Shelter 11 years ago when I was the shelter veterinarian. Her right leg was missing from the knee down with the bone protruding. I could tell the injury was several weeks old so I bandaged it and planned to hold her a few days to see if…