to stop puppy biting... I have a 4 month old puppy who bites hard when she get riled up. It happens when I walk across the room. She bites my feet/ankles and it hurts. I've tried redirecting her with a toy. I even been keeping one in my pocket so I have one I can grab quickly. She is smart. She runs it across the room, drops it and comes back to bite my feet. I've tried just stopping and not moving if I do not have a toy near. It doesn't help; she continues to bite and its hard enough that I cant stand there and just take it. I've tried asking for a sit. She will sit, but as soon as I move again, she is back at my feet. I've tried to let out a high pitched yelp. She only responded to that once. I try to avoid doing that because it scares my other dog. I dont know what I am doing wrong. Should I be putting her in her crate until she calms down? Anyone have any suggestions or know of any good articles that describe how to curb this behavior? I dont know if this is "nipping" behavior or what it is to google the articles myself. It feels like biting. She has tons of chew toys that she does use. This happens when only when she is really excited and I am walking. Today it was bad enough I had to defend myself by prying her jaws off my Achilles. Admittedly, I got angry this time bc it hurts and shes bites harder and harder each time. My previous puppies never bit me. I dont know what to do.