On Oct 13, 2015, at 1:15 AM, Charles Forsyth <charles.forsyth@gmail.com> wrote:

> with shrubbery to hide data from outsiders and, for defence in depth, another shrubbery slightly higher for a two-level
> effect, with a little path for authorised users

The reference implementation:

  https://www.youtube.com/watch?v=ifmRgQX82O4

--lyndon