He was COMPLETELY jealous. The day we came home from the hospital he didn't come near me for a week. He was beyond mad. And this was a dog that never left my side. He started tearing up the babies clothes and diapers. (he was never a garbage diver) Then when my son was about a year old he was playing with blocks while I was on the couch and he walked over to him acting weird , so I was paying attention to his weird behavior and he went for my sons face. My son did not even acknowledge him. I chalked it up and then about a month later it happened again. And I knew that I our home was not the home for him anymore.