He is beautiful and I am so happy that things seem a tiny bit better. I had a spaniel mix rescued from street abuse that I witnessed and she had a BB in her back leg which was never removed and which the vet did not believe caused pain. While I don't think that she was in pain, the trauma from the street made her aggressive if anyone came near me....aggressive like one of my vets was afraid of her after she took an attempted bite in response to a slight touch on her body. Fear and mental trauma as you have said are probably worse. Over time my dog did mellow to everyone's amazement, but it took time. The pic of him with that ton of toys you have for him is very touching.