Hi, its Roxy's Mom again. She is getting better with some people.. She is getting use to my grandchildren. But, she still will growl and act aggressive to certain people. I don't know what to do. One man threatened her and stared her down and said he would stomp her into the ground if she bit him.. I looked at him and said "Really you think so" I would rip his head off if he touched her...But, I later tried to explain her to him as being a rescued dog who had some abuse...I don't think it mattered... Anyway I don't want her to do this to run and growl at people because it is scary.. I cannot afford professional training. What can I do???? She is loving and sweet, just certain people she gets foolish... Help