i think it is a nice video, yes they should consider what they are doing is right or wrong, but that choice is theirs. Also obviously they aren't the fist that the deer have come up to and possibly it is a nature reserve.Wild deer are not usually that sociable and would not usually walk up to a stranger so they must have already been associated with people.And considering even if it is a deer does not mean it has deer ticks on it, you could get the tick regardless weather or not petting a deer especially if living by a wooded area, you could get the tick from touching a tree or picking up something from the ground.Also unlike predators deer don't need to salvage food or hunt it because they mostly dine on grass and other wild plants.