Even though we domesticated them over 9,000 years ago, house cats remain a bit of an anomaly when it comes to how we treat them. We can’t think of another species we keep as a pet for which it’s accepted behavior to let them come and go as they please, even if there are a multitude of reasons why we probably shouldn’t. There is no good reason to trust cats. Those of us who keep our house cats indoors have a pretty good idea of what they get up to all day... or they don't? Let's see together what your cat does when you’re not home - this video of what happens when they are left at home by themselves gives some answers...