Mission critical spreadsheet macro
From Gnomon Chronicles
A mission critical spreadsheet macro is any macro critical to the success of a mission.
The most famous example is the macro responsible for monitoring HAL 9000's behavior aboard the space ship Discovery.
Summary
BOWMAN: Open the pod bay doors, HAL.
CLIPPY: It looks like you're trying to override a mission critical spreadsheet macro. Would you like to speak with a Microsoft certified Hostage Crisis Negotiator?
