Adding a lock now is closing the stable door after the horse has bolted.
close the stable door after the horse has bolted
idiomTo attempt to prevent a problem that has already occurred; to design and implement a preventive mechanism that is too late (after the first failure instead of before).
They installed security cameras only after the robbery, which was just closing the stable door after the horse had bolted.
By implementing these strict safety protocols only after the catastrophic system failure, the management was merely closing the stable door after the horse had bolted.
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bang down the door
To present oneself as a strong candidate for a role or achievement, explicitly or implicitly.
- 02
beat a dead horse
To persist or continue far beyond any purpose, interest or reason.
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charley horse
A muscle cramp, usually a strong one, in the thigh, leg, arm, or core.
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close enough for government work
Adequate; acceptable as government work, imperfect but not worth the time nor effort of improving.
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close in on
To enclose around; to tighten or shrink; to collapse.
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close on the heels of
Near in time or place; very close.
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close one eye
to look the other way, to deliberately ignore or overlook (a mistake or transgression).
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close one's eyes
To ignore something.