My dog and I attended a lot of dog training classes, because I was a first time dog owner with no prior experience and she is the world’s best red heeler (according to my non-biased opinion). I take her with me almost any place that will let me. Whenever she feels uncomfortable she’d hackle and I know to remove us from that situation, very rarely happens when we’re out. She doesn’t bark when we’re at places like Home Depot, or any pet store. But when we’re home and there’s people at the house she’d bark at them. It especially happens more now because we’re renevating our home and there’s workers here to help us. Is this something that can be fixed with time and effort or should I seek professional help?