By Sophia Yin, DVM   May 13, 2009 4 month old Havanese pup wreaks havoc on owners arms QUESTION: My Havenese puppy loves to nip my heals and the backs of my legs. When I stand like a tree, he pulls my jeans or nips my legs and then stops. I praise him and give him a treat when he sits and stops pulling at my jeans or nipping my legs. However, no sooner do I move again, he repeats his behavior. He... [Read more]