We have a American bulldog x Labrador pup she is 13 weeks old tomorrow. She will not stop biting and barking! It'll get to around 9:30/10pm when we take her to bed and she will go absolutely mental like she is possessed! There is no stopping her. We have tried to put her outside when she does this but will start over again when we allow her back in. We have also tried saying no and tapping her on the nose but she doesn't listen. She will growl, bite, bark, run around, grab anything in site but will also bite me and my boyfriend and they are hard bites and will literally be hanging off of our clothes! We don't know what to do with her.. we are going to sign her up to a puppy class but the class doesn't start until middle of may! We had a 13 week old puppy before and he was never ever like this he was also a bullador but English bulldog x Lab She has toys but still will only want to bite us! Any help?!..