My eight year old neighbor came over to play with my kids one day. My dog just had puppies two weeks prior. The neighbor boy wanted to see the puppies and came into my home. My dog , the mother of the puppies, felt threatened and bit the boy in his face. She did not attack or anything, just a warning bite. Since he came into my home, without my permission are they able to sue me? This kid has been bittem by other dogs also. I just want to prepare myself if they are able to make a case out of this. The ER doctor didn't give the kid stitches or anything, just some butterfly bandages. It was just a couple puncture wounds and a scrape. I am not justifying my dog's actions but I want to make sure that my "Beware of Dog" sign has a purpose other than so take up space on my fence.