My 10 week old pup Montana is showing signs (of what I interpret as) aggression. He is a. Very dominant puppy and is very standoffish, ignores me quite often, refuses to be trained and will act out at me if I try to hold him back from running toward other people or dogs. I am calm around him and don't use any abusive methods of punishment. He is getting his second shots tomorrow and will then be going into some puppy classes where I hope his behavior will improve. I am very worried about him and we spend all day together. I'm tired and I hate the fact (and I'm sure he is as well) that every time we go out its a total hassel. Can anyone help me?