Oh, don't worry, we do know that shrubbery won't stop anything.
We haven't actually set up yet (other things took precedence), but our plan as it stands is that only one of us will shoot at a time, and the other one will watch out for any strays of any nature. We've no wish to shoot anything at all, much less a person or their dog, so we're planning on stopping immediately anyone hoves into view in the field (and we've got a clear view all ways for at least 300 yards), or if any of our neighbours are out in their garden. We will be taking extreme care.