Flypast! As I recall it was always the signal for the hosts [sometimes "us"] to get rid of the guests at the various station receptions in RAFG.
Last Post, Sunset, Colours [not sure of the order] and a 4-ship low and loud. Variously, I seem to recall Lightnings, Hunters, Harriers and Tornados, spread over three of my lucky tours.
Now b&gger off and let the real thrash begin!
As a footnote, for which I apologise, did anyone else suffer from coffee-spoon pocket? Coffee served genteely on a saucer, with spoon, whilst deep in incredibly boring conversation with strangers, and no use for the spoon, which endangered the cup. Spoon in pocket, discovered weeks later .............. Don't ask.