Graham, our 1 year old sheltie, had the best day of his life at http://www.ewetopia.com where they train dogs to do sheep herding. They will do herd dog demonstrations at the upcoming Puyallup Fair, in case you just want to watch.
The session was 10 minutes long, but Graham could only last 5 minutes. He overexerted himself by barking and running and just being the best dog he could be with all his might chasin’ them sheep. Then he just walked straight to the shade where the sheep were corralled and collapsed, not to be disturbed for any treats or sheep in the world. A good dog is a tired dog, and he was one great dog that afternoon.
Here’s a shot I took right at the beginning.