re: 4 Year Old Mutt Recently Getting Aggressive

I don’t know if your shock collar method is the way to go, unless she’s already collar conditioned. She needs to understand the shock she’s getting is coming from you and not just some random blast of electricity. If she isn’t collar conditioned, this is probably just going to confuse the hell out of her and may even make her more aggressive just out of fear. As the dogs owner you really need to understand how the collar works in a dogs mind to be an effective training tool before using it. Just my two cents