OK so Abe is having some trouble. We have been scootering with Abe (Aussie) and Bryn (Brittany) for just over 4 months now. I have been scootering with Bryn for probably 2 years (started roller blading at first) So now Bryn is old and no longer scooters. Abe will not pull. He has pulled just fine all this time with bryn. He would continue to pull when i told bryn to give some slack. But he won't pull on his own. He won't pull the sand bag or the tyre either. I think before we had him he was punished for pulling because on leash he is very very sensitive. But when i get on the scooter he stops as soon as the line gets tight. Where do we go from here?