6 month boxer pup growling @ people?

Question

I can't get over it! I foster dogs and have been involved with rescue for 16 years. I recently decided to foster a boxer male pup. He came from a cage that was too small and no real human contact or interaction. Just a little food and water thrown out to the pups. When they put his collar on to lead him to my car, he yiped as if He was being killed, over a collar! So that rose the red flag.
After weeks of tender loving care,feeding and some basic training he is so sweet and lovable. He loves and trusts me, he hogs me, and my family. But I have a pampered male boxer that is so jealous and I didn't want to hurt our bond. Although they get along great! Both need 110% attention. So I decided to adopt the other out.
He was recently neutered? But I never had a reaction like this? I know my cat was mad and grouchy for days, but a dog?
He made a very poor impression, growling and just behaving completely unlike him?? What is that about?

Since he has been with me he has been very well taken care of and socialized. I am an animal lover and he lives with 5 dogs ,1 cat & 1 free roaming ferret. He is great , little shy but freindly when we meet people. Can dogs just pick YOU? It was like he knew what he was doing.

Answer 1

This dog could need PROFESSIONAL behavior help. Like from a real trainer. He may have many issues and not be suitable for placement. He could be a time bomb. It sounds as if he did not recieve proper socialization at the crucial time and that can spell trouble. I have seen too many of these stories end badly after the dog did something and the owners had the dog euthanized. Get the dog evaluated soon before something happens.

Answer 2

You answered your own question. He was abused by people and has bonded with your family and your family only. Let it go. Let him enjoy the people he loves and be cautious of the people he does not.