1) no
2) no
3) yes, my uncle got shot once while turkey hunting because the shooter didn't identify his target; my uncle was doing the calling. The f**cker just jumped up and ran to leave him there.
as far as the Chaney thing, I havn't really followed it, I will say that all people in the party should make known where they to the rest of the party at all times. That being said, if you are carrying a gun, you are responsible to know at least where your immediate party members are, and also to identify your target. As for the liscence, you should always have a valid liscence for what you are hunting.