There are five people in the house. He gets along with everyone. He started showing some signs around Christmas when someone came to stay with us, but they disappeared for a while after she left. He has attacked my daughter’s boyfriend in our house, and two children at our family cabin. Lucky the children weren’t seriously injured. The boyfriend was slightly worse. He also attacked my daughter’s hand and arm three different times when he had a bone. Removing the bone won’t be a problem, but the other situations didn’t involve a bone and don’t seem to have any linking factors. This all occured within the past 2 months. I am very concerned for the safety of people around my dog. I really don’t want to have to euthanize him, but I am worried that even though we are going to see another trainer (the first was just a consultation visit), it may not help the situation. Please help me!