We just got a beagle puppy one week ago, and he is 9 weeks old. Puppy only had 1 litter mate, who left the breeder a week before he did. Pup was the typical puppy bitey the first couple days, but now he has turned it to vicious biting towards my husband. He tried to put the leash on the pup and was bitten- it broke skin. Is this a sign of aggression? What can we do to stop this behavior? Now my husband does not want to touch the pup. We need help!!!