Our new puppy doesn't go for walks yet since she is not vaccinated fully. Any tips for exercise? She just goes crazy a few times a day as she has no outlet for her energy. I have tried "fetch" in the kitchen, but she tends to get overexcited and start biting my feet and hands, she even drew blood yesterday we are working on bite inhibition....but, its very slow, and just impossible when she gets overexcited. Is it bad to allow her to get so excited? Is there any way to exercise a puppy without them going insane, or is it pretty much one and the same at a young age?