8. When you go out and he is calm
Yes, it is. Usually, most dogs could express a resounding sadness every time you leave home without him. This is because the prosocial begins to suffer from a period of anxiety and fear of being alone for a long time.
But there is one thing you do not know: if your dog accepts the fact that you are about to leave the house, this is a sign of deep love towards you. It means that he trusts and knows that you will come back to him.