I have not been bit by an agressive dog. I was bit by a pitbull. We were playing and I nelt on his paw in a way that I pinched one of his fingers and he let out a yelp and grabbed my elbo. (i broke his nail a bit) I had the pins and needles feeling in my arm for 30 minutes. The dog was so upset he bit me that he started to wimper and licked me to death. He wouldnt leave my side after that. If I would sit on a chair he would climb up on my lap (he is 99 lbs)and dig his beak into my chin. He was so upset. He did not break the skin, but left a monster yellow/black and blue. Till this day (he is not my dog) he remembers and he is crazy about me. I have him over for sleep overs and I take him fishing all the time. He is my best bud.