Don't shut the barn door after the horse is stolen

If something is wrong, it is like locking the barn door after the horse is stolen, ... But we are still going to pursue it. I want to know what they bought with the money.

Closing the barn door after the horse escapes

Don't close the barn door after the horse runs away

Don't lock the stable door after the horse has been stolen

When the steed is stolen, you shut the stable door.