A South Carolina family noticed that whenever their babysitter would come over to the house, their black lab dog would start barking and insert himself between their 7-month old boy and the babysitter. Deciding to take a hint from their dog, the parents left their iPhone behind to record what was going on.
What was going on was yelling and some physical abuse that got the babysitter arrested and sent to jail.
That's one fine dog. And smart parents to pay attention to it.
Here's the full story and a video from the local ABC News outlet.