How do you feel about people walking through your campsite?

I can't actually remember someone walking through our site. Once while camping with our daughter and her family a family walked right beside her TT window and startled her sleeping dog. Holly jumped up and barked loudly, not snarled just barked and the woman yelled at her. I let the woman know that Holly did not bark at anyone walking correctly on the road, but when someone walked right beside the window she was startled and barked, not the dog's fault. I did not get the feeling that this lady understood what I was saying.