Has anyone else encountered this problem when training their dog for therapy work? Granted Lucky and I are only in basic obedience but I got a taste of what might happen because the trainer had a walker with tennis balls on the legs of it at our class in preparation for her next class that night. I noticed Lucky being distracted with a basic stay command and when I released him, you guessed it, he went right after those tennis balls on the bottom of that walker! I laughed and told the trainer and she told me that is one of the test for therapy training. Now it's not so funny. How did you get your ball obsessed doodle to leave Granny's walker alone? Any suggestions?