Reply to Tammy Falkner's Post: I have not found a dog yet that he does not get along or is aggressive with. He has been around dogs 99% of the time out of the house but we have had a dog over & he was fine with her. He is a very young 10 year old he runs around a lot. Should I get the same or opposite sex dog , he is neutured. I am thinking about a smaller dog , my dog is about 35 lbs.