I myself would get a little mad. I will not allow anyone to sit within 300 yards of any of my stands. I know it sounds like I am a jerk but if a person starts spooking deer 75 to 100 yards from my stand it will have some effect on my hunting. I know on public land spots are hard to come by but I think that may be to close. Talk to him and see if he minds. Jst my opinion.