New Dog Blues

I would put him in an area that is small so he cant get very far away from you but not too small where he feels trapped. A garage would be good.
Have different foods and get him to eat from your hand if possible. after you have his confindence up and he trusts you I would take him on walks and show him you are his leader and he will eventually trust you and not feel the same fear. It can get frustrating, but never yell or hit him at this stage or it will only hurt the process

I got a dog that was so scared she sh*t all over herself when I put a leash on her. She would literally lock up and not take a single step. YOU could drag her and she was so terrified she would rather be dragged than take a step. It was a long process but she will now run next to me for 3 to 4 miles every other day.

Just watch the dog whisperer and he will teach you what you need to know about dogs way of thinking.

Its alot of work but better than getting you boy bit