Great Dane Helps with Ecomposter Ball

My wife thought it would be a good idea to get our Great Dane to help roll the ball around to mix the compost. While Ernie is really stubborn about learning new things, he loves this ball. He immediately pushed it into a planter where he patiently waited for help to get it out. Then he pushed it around the back yard. That is what my wife wanted but eventually Ernie will push it toward the back of the yard and it will roll down the fifty foot hill. He hasn't figured out how to push it up the hill so he barks until we help him get it back into the yard. See the video on youtube Ernie shows how talented he is.