hi boys! this dog of yours needs some work buy the sound of it, take the russtle out and give it some action rabbits rats even get a fox brush on a line and let her give it a good rag!! till she is fuked! my teriers are bord now to the point of killing each other if i let them, most working terriers are like that. your learn but this type of agresion is quite normal the little chuawa is fair game its a pitty he dont see it like that!!