Am trying to train my 16 week puppy to walk to heel. Does it wonderfully in the house and at training classes but forgets it completely outside on her walk. She does not even acknowledge the treats so I started to use tiny slithers of cheese which worked at first but now she does not even look at them. Need some tasty treats that are ok to give puppies to try to keep her interest. Walks are becoming a nightmare as she pulls constantly.Any ideas??confused: