"We wish we could get away from them, but as you see from the numbers, 347 of them, we use them quite a bit," Williams said. "We definitely make sure that it's safe for people to occupy them."
"It's all very controlled," Williams said inside a yurt he uses to train dogs. "It's not about poking the dog with a stick and making him angry. It's using the prey drive to interact with equipment in a certain way. It's a very controlled, confidence-building exercise for the dog, not loose-cannon aggression. I take the bite suit off and we roll around and play together."