To a son-in-law and a hog you need show the way but once.
More Spanish Proverbs:
Advise no one to go to war or to marry.Spanish
Money turns bad into good.
Spanish
Love is like a mousetrap: you go in when you want, but you don't get out when you like.
Spanish
Be my enemy and go to my mill.
Spanish
Welcome, misfortune, if you come alone.
Spanish
Renounce the devil, and thou shalt wear a shabby coat.
Spanish