In accordance with protocol, General McCann will be obliged to propose a toast to Mr McGuinness, president and commander-in-chief.
Acutely conscious of Mr McGuinness's past and recent history, will there be one - or more, or many - of those present who will feel honour-bound to remain seated, or maybe even walk out?
If, to a man, they all stand and raise their glasses to their commander-in-chief, will they recall the stinging words of a former colleague and coach to an Irish rugby team - "Where's your f*****g pride?"
I think they call it self discipline.
Cos they took my F*****g SLR away.