I frequently get calls about dogs that start out playing nicely then suddenly erupt into growling and biting. Many people think their dogs are being aggressive or that they are schizophrenic. Your dog does not act this way because they “flipped a switch”; they do this because it is normal for play to get heated after a couple of minutes of rough play.
We tend to teach our dogs to stop and relax after one and half to two minutes of play. We do this by having them on leash in