Update: The dog, Rosie, refused to go outside for the rest of the morning yesterday. Instead she went upstairs and stared out the bedroom window for several hours. She finally came back downstairs and went outside again around one or so in the afternoon. I am glad she's not a bear-worrier; they do say Golden Retrievers are, like, number four on the dog breed intelligence scale. Not Chasing Bears, I suspect, is a sign of intelligence.
A couple of years ago--the same day the pope died!--our dog George, after fifteen years of keeping the house safe from squirrels, had to be put down. We still miss ol' George. He was one of those magical smart dogs, even if he wasn't very efficient squirrel-wise.