Newboomer,
when i am guiding and a hunter is with me, he is behind me almost all the time when hiking, getting off the boat and skiff. I usually don't know them. i am in front and MY gun has an empty chamber, unless we are going into a tight spot in the alders, when clear of that space i empty my chamber in front of the client.
i believe in being prepared, and am. that said, i offer my hunter the freedom to check my rifle at any time for bullets in the chamber. i don't want him feeling that i am treating him differently than i carry my own gun. if we have a encounter with a sow or bear at close range, i have the hunter chamber a round and move along side me.
those are the rules, we have had a couple guys that did not like it at first, but they came around. this is not a way to make clients feel stupid, or unarmed. this is a very real safety issue. i had a hunter damn near put a 338 win bullet in me when we had a bull moose running off, he missed me. so, you might be the safest guy in the world, with the best muzzle discipline, but you are still behind me with a loaded 375. maybe if the roles were reversed you would feel different, but maybe not. having a stranger with a loaded bear rifle behind you all day (and some hunters fiddle with their rifles, safeties all day) makes me....careful.
@Scott CWO guides bears, maybe his outfit has different rules.
as far as the woman with the rifle goes, she went out to PROTECT people with a rifle that she was not familiar with and obviously mis-ran it. hmmmmm, problem was not the gun it was the operator (of course the gun could have had issues, but if it was HER rifle, it would not have had issues.) I'm not sure which life lesson she learned, maybe have a gun that works, EVERY TIME!!