We just got a puppy about two months ago. Her name is Piper and she is four months old. We were wondering, since this is our second golden retriever, why Piper is refusing to go on walks. I have taken her on two successful walks but the others, she pulls back for the first half and forward for the second. Our other golden who just passed away never refused like this. Piper is not lazy, she loves to play in the yard and rather be outside playing than inside laying down. Does anyone have any suggestions what I should do? Thanks.