If I have already identified the game with the naked eye, I certainly don't mind checking it out further with a rifle scope, as I know how fleeting that opportunity may be. I do not, however, scan the landscape with a rifle scope; that's what binoculars and spotting scopes are for.
I have been looked over through a rifle scope and it really is unnerving because it is impossible to know the intentions of the operator. It is unmistakable, though, that someone is pointing a gun at you. And, unlike the inadvertent swinging of a shotgun muzzle past a fellow hunter, using a rifle scope like that is a deliberate act.
