Phillip Keller writes of his experience of shepherding:
"This reminds me of my encounter with cougars. On several occasions these cunning creatures came in among sheep, creating great havoc in the flock. Some were killed, their blood drained and livers eaten. Others were torn open and badly clawed. In these cases the great cats seemed to chase and play with them in their panic like a house cat would chase a mouse. Some had huge patches of wool torn from it. In their frightened stampede, some had fallen and broken bones or rushed over rough ground injuring legs and bodies. The amazing thing is that in every such attack, I never saw the cougar."