Aggressive wheaten terrier puppy
My 10 week old puppy is very sweet and your typical puppy that nips and mouths. Then all of a sudden he turns into demon dog and shows his teeth snarls and attacks my hand or anything near his mouth with a vengeance. I'm not talking puppy play biting I'm talking downright attacking my hand as if he's fighting it. Any advice on why he's doing this and can this be corrected or is this puppy damaged goods!