Question: how to train your puppy not to bite leash?
Answer: Step 1: Introduce an acceptable tug toy. You don't need or want to get rid of the tugging behavior completely. ...  Step 2: Start training and rewarding good leash behavior in your living room. In the living room? ...  Step 3: Puppy on leash in the living room. ...  Step 4: Reward with tug. ...  Step 5: Take it to the streets.