Hi. I am new to this forum. I found it while searching the internet for help with my new puppy. She is a lab/shepard mix (we think) that was found with her litter mates in a dumpster! She is now 8 weeks old but I got her 2 weeks ago at 6 weeks. I have a feeling most of the problems I am having with her are due to not having her mother "train" her. First of all, I am crate training. When I take her out of the crate I take her right outside and she will pee and poop. And as soon as we come into the house, she pees and poops in the house again. When she is out for play time she squats and pees wherever she wants. We yell "no" but she just keeps doing it. The worst thing though is her biting. I know mouthing is normal for a pup but she will start mouthing and then growl and snarl and bite very hard and wont stop like she is possessed or something! I hold her snout and say "no" firmly but nothing stops her when she gets into those moods. I just wind up putting her back in her crate. She is starting to exhaust me and the kids (teens) are starting to get afraid of her attacks. She seems to have a jekyll/hyde personality because sometimes she is a lovable mush! Please help me to find a way to get her to stop the aggressive biting and growling. Thanks so much. By the way, I also have a 9 year old dog who is also a lab/shepard mix and she is so sweet and trained really quickly. She wants nothing to do with this new friend. She hides from her!