Can Artificial Intelligence Save My Couch?

I have three dogs at home. The youngest, who is still a puppy, is threatening to demolish our living room couch. I'd like to know when my furry terminator gets into demolition mode so that I can salvage the situation. The trouble is that we cannot monitor the living room round the clock. While I can arm the webcam with motion detection capabilities, I need to be alerted about a specific kind of motion.