We said good-bye to Harrison today. His passing was sudden and unexpected, probably the result of a heart attack. He had a good morning, ate his breakfast with gusto, barked at the birds, and happily greeted Margot, our long-time cleaning woman. Then he just laid down and was gone. It was quick and, I think, painless. I'm glad that I was with him. We just weren't ready to say good-bye yet. He was a good dog and will be missed very much. My heart is heavy.