I taught my son many things which he ignored, the one that seems to have stuck best is don't kill something unless you are going to eat it.

The darn guy wouldn't kill ground squirrels until they stripped a fruit tree in a single day, and he feels like rattlesnakes should be relocated or put on the BBQ. He doesn't like venison so wouldn't hunt deer until his kids told him they liked it.

I've never eaten grizzly but eating what you kill is basic hunting ethics. Coyotes, bobcats and ground squirrels that I've shot don't get eaten but I wish they were as tasty as quail so we wouldn't be wasting the meat.