And there's nothing particularly "devious" about getting a long-focus lens, pointing it and pressing the shutter. You point and you shoot. You eat yer butties and go home for your tea. They can't see in the dark or round corners, you know. The really devious thing would be for the royalty to stop getting their norks/meat 'n' two veg/front botties/bumbums out in places where they have panoramic views of the countryside, innit! We can see them, so they can see us! Doesn't take much intelligence, but there you go...