At Stonehenge they COULD stop shits clambering on top of the stones.
Nigel, stop looking down your nose at everyone, eh? There's no reason why you can't express your desire for keeping the stones people-free without the need to be so bloody vitriolic and bitter about it. I remember... just off the top of my head... at least one reference in TMA to Julian Cope climbing on a stone. Is he a "shit" too?