I am watching my friend's pit bull for five days. She is an eight month old puppy. She is a brindle and she is very hyper. She likes to chase my cats and she constantly chases my dog. I have been taking her for several walks to try and tire her out. Does anyone have any advice on how I can get this girl to calm down a little bit? Don't get me wrong, she is a great dog and I know that puppies are a little bit hyper. I just need to find a way to calm her down a little bit. I would really appreciate any advice that any of you my have. Thank you in advance.