[JoeyP]

This is difficult ...
and I'm not saying that he can't be rehabilitated but it's going to be a long road
Like the little children who were taken out of Romania many years ago who were left isolated in their cribs without any human contact
these dogs who never have been socialized with humans or sometimes with other dogs can actually have altered neural pathways and brain patterns

When dealing with dogs like this you always have to keep in mind that everytime a human has come to him in the past it was to abuse him
You need to change that
so everything has to be positive
and everything has to be none threatening ....
when you reach for him don't do it from above
crouch down first and then pick him up
Give him treats whenever you want a certain behavior
reinforced
and slowly with time and affection he'll come around