I mentioned one in the post just above yours. Hunting in places where shots beyond 100 yds are rare and shots under 50 yds are the norm. A whitetail can definitely hear a round being chambered at those distances. Now, if you're of the opinion that leaving the chamber empty until a shot is imminent is a basic safety rule, on the same level as muzzle and trigger discipline, then spooking game on occasion because of it is just part of the deal. But if a person has that opinion, they'd basically never be able to participate in certain kinds of hunting at all, such as upland birds and turkeys.