Ever hear some rustling in your walls?

Is it the cat? Is it a Chipmunk? Better yet, want to see a wire configuration behind a wall but don't want to tear apart the wall? Video Inspection Cameras are a great solution. Can you think of a time that you could have used one of these? Please share your experience.

Original article and pictures take http://www.hometalk.com/108786/ever-hear-some-rustling-in-your-walls-is-it-the-cat-is-it-a-chipmunk-better-yet site