Nice looking dog. Was he in a shelter did you know the previous owner? I'm sure he'll pep up. Not nearly the same size but I had a toy poodle that the rescue organization swore came from a family that loved her but couldn't afford her when she had medical issues. She cowered every time I reached for the rest of her life, even after years of love and affection. Like you, I think that she was either abused or the kids in the family didn't know how to treat the little girl. I hope Ceaser gets comfortable soon.