Contacting the Author
I tend to move from place to place, but generally am able to maintain a fixed
email address.
I welcome your contact for any constructive reason.
My email address is david@freenet.org.nz
(You may receive a 'please confirm' message if you contact me. I use a whitelist-based
spam blocker. Please don't be offended when you receive this. I do want to
hear from you.)