I can see if they were actually spooking away from the guy when they got in close would not be a good thing!! Myself, Im extra cautious to make sure my set up is perfect.... both on private ranches and public land and have yet to spook one off. However if this guy is indeed a threat to your style of hunting then kindly express your views/knowledge and be glad there are new people entering our sport as we are in fact a dieing breed. If we spent more time educating greenies and expressing our points instead of beating up on fellow hunters calling practices we would be far ahead! Happy hunting and be safe.