Hi beisha,
The following can be a teaser for you, seeing it concerns / is of interest to you for some reason.
There are more, but I am under no obligation to disclose anything to anyone. And I have posted reasons on HC before!
https://hotcopper.com.au/threads/an...4572981/page-36?post_id=36914393#.XeXo_SXZWEc
https://hotcopper.com.au/threads/an...5065543/page-41?post_id=41396749#.XeXpLCXZWEc