A few days ago, I came across a male pit bull with no tags. I called animal control and they said they wouldn't, that's right, would NOT, come pick it up. I ended up bringing him home, since I had a pit in college. Its somebody's dog, because he is well trained. Sits, lies down, drops toys when retrieving, etc. Hes very friendly, but not neutered. I have put up signs but if no one claims him, I was hoping to maybe keep him. Do you think introducing a puppy doberman to this dog would be ok? Or should i take him to SPCA and put him up for adoption? I really want that doberman pup. It would be nice to keep them both, but I don't think that's going to be possible. Any advice?