[GoofyBritt]

I highly recommend Cesar Millan's techniques. We've used them on our dog and he is a perfect angel, other than not eating when he's supposed to... It sounds like that program someone mentioned is probably along the same lines as Cesar's ideas about pack leadership. I'd definitely google that program and Cesar Millan (The Dog Whisperer) and work on that. You wouldn't "rehome" your human child for a biting problem, you'd correct the behavior. My mom didn't adopt me out because I had a biting problem (which I did), she asserted her dominance over me and bit me back (not breaking the skin) and I quit biting.

When your dog bites or lunges at someone, Take your your index and middle fingers, point them like a gun, straight out. Poke the dog's neck. Not hard! But firm. And say NO. The dog may act confused, he may whimper at the touch but I assure you that you did not hurt the dog. You are telling him IN DOG TERMS that you do not approve of that behavoir. That's what dominant dogs do in a pack, they nip the neck of the other dog to show disapproval. Dogs will respond to it. It may take a few tries to get it right, and for the dog to back down. He may even turn his back on you or look away and refuse to look at you after that. That's a good sign. He's respecting your dominance. You are pack leader. You have the final say in all that he does.