After you read this one, ask yourself whether your employer could permissibly -- or should be allowed to -- secretly videotape you in your office. What about in a lunch or break room, or a hallway, or a conference room? If someone's been watching porn or stealing pens, would that be enough to justify secret surveillance of everyone in the office?
Sure, we know they can't tape you on the crapper. But in the modern era, virtually everywhere else seems up for grabs, at least under the right set of circumstances.