One tidbit you may find interesting...
On one of the those CX operated L1011 flights to Shanghai the crew found themselves in a thunderstorm just south of Shanghai. With the Chinese controllers unwilling to allow ANY deviations the crew found themselves in the hail. The cockpit windows were damaged making visibility difficult if not impossible.
Declaring an emergency Shanghai told them to "Go Home". They were denied permission to land and told the airport would be closed. They did not want anything to do with an impending "emergency"...
With no place to land, they turned around and landed in Hong Kong. I believe it was an Auto-land to runway 31 at Kai Tak...