The best boss I ever had preached: "DOCUMENT! DOCUMENT! DOCUMENT!" Throughout my work life, I always followed that advice. I never lost a grievance mostly because I knew the Contracts but also because my cases were always well documented. Patrick Moynihan practiced "MEMCON" (MEMORANDUM OF CONVERSATION) and insisted that his subordinates use the technique. It is well-known that the FBI encourages the use of the technique.
I hope that the recently terminated FBI Director documented his conversations,