I have watched my dog work. She is a Great Pyrenees/Akbash/Bernese Mt Dog. She looks like a sweet dog. However, Let the horses be too close to the fence and someone walk by or drive slower than she thinks they should and she is out there moving the horses away from the fence and then goes back to warn off what she feels is an intruder. Also, when she first meets someone she has to be told that the person is OK. They are a friend. I don't know what I would do with out Brandi. She also works the chickens like she was a cutting horse when they have to be put in their pen to be fed. She is the best.