Thats exactly right. Deer know exactly what their safe zone is when it comes to people, equipment or whatever...and they won't vary from that safe zone.....take my grandmother and her husband....he can hand feed many bucks that live in his area...but no one, and I mean no one else can even be outside the house when it happens....I even tried to go out with him, hanging right on his side and the deer turned inside out to get out of the area.....but him alone, they come right in.....