Hey, I just saw your question. And, Yes Dobbies were bred to be protectors. Actually, a tax collector back in the 1800's had bred dobbies to protect him when he went into seedy places, so he wouldn't be robbed of the money he carried around with him. Since then, they had bred the aggressiveness out of them, but they are still very dependable protectors. They are great with children. I had one myself, Blackjack. You made a great choice, be proud when you walk him around the neighboorhood.