Aggressive Rat Terrier Mix Puppy Very Aggressive With Visitors
We bought our little Rat Terrier Mix when he was 2 months old, from the Humane Society.
Even at this very young age he growled a deep growl at me when I hugged him one evening, but after this, his aggression is toward visitors to our home, and not just barking but a deep, threatening bark.
Recently we had relatives at our home for a week, and each morning when they came out of their room, the aggression was as if he had never seen them before. He lunges with a fierce snarl, and he was only 6 months old at the time.
We have regular visitors each day, and the constant barking and aggression is wearing thin.
What can we do to help our puppy become more social, when people are already at our house on a daily basis?