Which provokes another question of etiquette: if, as your eyes wander from a fellow guest's cleavage to her eyes and back, you notice that her trouser zip is completely undone..... should you subtly let her know or simply ignore it and hope she will notice herself?
Well apart from the fact that we are clearly delighted both that you enjoyed yourself and that you have returned home safely (well, until Mrs MM reads your last post ....
), you have signally failed to tell us what you/other guests actually wore, and what you did with your outdoor footwear.
And, oh, the zip .... What indeed does the readership think - the cousins sometimes say "XYZ(ee)) as in "Examine Your Zip(per)", but there are masses of other options such as "You're flying low today", but which one would Blue Eyes have understood?
As a simple sailor, I might just have said, "May I help you with your zip (either now or later)?"
Jack