That's a very simple question, it happens to me ALL the time when leaving my stand after dark. Simply turn your flashlight on or a head lamp and start gathering up your belongings in your stand and start descending down your tree. They will scatter without alarming them. I have done it many times and the same deer come right back. Think about this, why doesn't a deer get scared when spotlighted? Why doesn't the "flash" on your trail camera spook the deer? They will come back to the same place once you get out of your stand. The "light" works everytime.