I have a 3 year old doodle - River - he's amazing - smart, funny - well behaved - pefect in every way - except for the stairs - he will not go up and down the stairs in my building - and as it would happen - I am on the 5th floor - so when the elevator is broken - I have to haul his 80 pound BUTT up and down 5 flights - any suggestions - I've tried everything - food, treats, doing it with him, leaving him there....nada......I don't think even Cesar can help with this one -