closing the stable door after the horse has bolted

closing the stable door after the horse has bolted

Trying to prevent or rectify a problem after the damage has already been done. If you try to replace the oil filter on the engine now, you're just closing the stable door after the horse has bolted.
References in periodicals archive ?
It's closing the stable door after the horse has bolted to say now that Anglesey should be separate.
Waiting until children reach mid teenage years is too late and mirrors closing the stable door after the horse has bolted.
This is closing the stable door after the horse has bolted.
So while he now faces condemnation, isn't it rather a case of closing the stable door after the horse has bolted -twice?
I find Rhodri Morgan's tour of West and North Wales a bit like closing the stable door after the horse has bolted.