A postern door makes a thief.
More Spanish Proverbs:
Only God helps the badly dressed.Spanish
The dog that has its bitch in town never barks well.
Spanish
To deny everything is to confess everything.
Spanish
Neither serve one who has been a servant, nor beg of one who has been a beggar.
Spanish
The old wife, if she does not serve for a pot, serves for a cover.
Spanish
The wolf loses his teeth, but not his inclinations.
Spanish