Does anyone know at what age to begin leash training with a puppy... I actually started my 12 week Chihuahua in the kitchen and rewarding him when he walks with the leash. When I get him outside he's OK for about 5 minutes and then all the sudden he begins to tug and cry so I immediately take the leash off. It is probably strange for him because he follows me everywhere WITHOUT the leash. How do I go about this leash training.
