Heeling Length

I brought Kastle to Pawsitive to work on heeling after class today. It was the first time we did more than 5 paces. Also, I introduced the very first turn - to the right - and got bit. He appeared to think that I was releasing the ball under my arm and jumped up to catch his reward only to hit my wrist. His reflexes were sufficiently fast enough to release without even scratching the skin though.