In the aforementioned scenario:
The Grieving Process:Step One: Resign from the service.Step Two: Go on a rampage, brutally murdering every drug dealer in South America.Step Three: Utter dry witticism.Step Four: Never mention friend again.
Read on.
How to Deal with Tragedy -- 007 Style
James Bond as grief conselour -- let's say, for example, when you "find your best friend's corpse, after a drug lord has fed him to a shark."