Sure, I know for example that during lambing a certain percentage of the sheep will need assistance. So I plan not to leave the farm then and do prep things like stocking up with food and coffee before the lambalanch starts. I know that we will have storms and need to work on ditches, so I can prepare a list of phone numbers to call when there is an emergency. What I can't plan for is exactly when these things will occur.
This is eerily reminiscent of being an executive assistant! On any given day, a certain percentage of my "sheep" will need assistance. I have a list of phone numbers to call when there is an emergency. And I don't always know exactly when crises will occur! I now have a new model for executive assistants: shepherd!