My neighbor's husband recently brought home an 8 mon. old mixed breed puppy that someone at work was giving up. The dog already weighs 65 lbs. is very active, barks alot and requires alot of attention. My neighbor said the previous owner said it needs disciplining and should be fine with some training. From what I've seen this dog just seems wild, he could knock you down when he jumps on you plus he'll start barking at you until you begin to pet him. One trainer they contacted said the dog training would cost over $500. for multiple sessions since it's such a big dog. I have my doubts that all dogs can be trained but I have no experience with this issue. My neighbor asked me if I'd spend the money on him, I really don't know. Anyone have any thoughts on this. (I think the wife would like to give the dog back but the husband, I think, feels foolish doing so).