Quote Originally Posted by JenBKR
So, how then should I have gotten my 93 lb. german shepherd to walk by my side and not run away without coming home, nor pulling my arm out of it's socket? I would not use a prong on a 2 year old, but I did on my dog, under my trainer's supervision, and it worked extremely well. Perhaps positive reinforcement would have worked eventually, I suppose in the meantime I would just not give him walks and exercise. Then I would have been a bad doggie parent for not giving him exercise. Um, ok......
15 mins a day sit heel work, in an enclosed area,

until he got it right,
make the dog sit when he does praise reward,
Take one step with the heel command and sit again & reward.
Gradually increase the steps taking always start and finish with sit.
start and end training with a game... make it fun... never work more than 15 mins at a time.

German shepherd should pick it up in about a week of 15 min sessions max.