Here is a link to Treibbal, a dog sport i had not heard of before yesterday.
How to Teach The Basics of 'Treibball' or 'Push Ball': A Great New Game for Energetic Dogs! - YouTube
I started training both my dogs yesterday on this. Have them touching the ball on command currently, next bit is to shape the touch lower on the ball.
Im very excited, as this looks like bernie's idea of haven. He's never had a go with sheep. So im hoping he wont notice the difference lol