 I believe that you might want to do a mellower version, not get the dog really excited, just mind to say goodbye. If the dog already has separation anxiety, a different approach would be taken where you wouldn't be telling the dog goodbye and hello. But if you have a dog and a cat in your house, and I say goodbye and hello to my guys when I go, but I just make it a mellow hello and a mellow goodbye so they realize not to get overly excited when I come and go. But they actually say that the greetings, the excited greetings can cause separation.