Sean Thornton is a wonder boy. He is not good with strangers. He needs to be introduced for 10 to 15 minutes and then he is ok and will remember the person and have no problems with then. But if stranger comes into house or yard he would bite them. He is a great protector, I go any where with him and feel safe. He would give his life to protect me. I am a widow and now have to move where I cannot have Sean Thornton. He is very good dog for a woman alone, for companion and protector. I am heartbroken to have to lose him, but would rather see him in a good home then to have to have him put down. He is very affectionate and loves to be patted and shown attention to. He has been well trained and quick to obey commands.