When the steed is stolen, you shut the stable door.
More Spanish Proverbs:
Where the sea goes let the sands go.Spanish
A bad wound may be cured, bad repute kills.
Spanish
Let it be a husband, though it be but a log.
Spanish
Better is rule than rent.
Spanish
Walk until the blood appears on the cheek, but not the sweat on the brow.
Spanish
So you tell me there are wolves on the mountain, and foxes in the valley.
Spanish