I dont know what ive done wrong. We've only had shadow for less then 2 weeks and it feels like we've ruined him already. We never should have gotten a puppy we have no clue what we're doing. Hes getting so aggressive, for no reason he will start growling pull his lips back and snap. Nothing helps we've tried ignoring him and walking away, holding his muzzle shut lightly and firmly saying no, and time out in a small room by himself. Nothings helping hes getting worse. I dont know what to do. He used to be such a sweet puppy and now everytime anyone tries to pet him or anything he gets aggressive. He's only 2 months old, I dont understand what we could have done to make him like this! PLEASE HELP! Im desperate!! I thought goldies were supposed to be friendly thats why we got one.