Not all protective dogs are vicious. My dog is very friendly and allows people to let her, you wouldn’t think she would bite anyone. She has bit exactly one p

Not all protective dogs are vicious. My dog is very friendly and allows people to let her, you wouldn’t think she would bite anyone. She has bit exactly one person and that person kicked my gate down on my front door attempting to burglarize my belongings. Am I at “fault” because my dog defends what she knows is our home from a total stranger she knows doesn’t belong?