Better not fight with the condemned.
More Sicilian Proverbs:
If you show a rich man kindness, you gain nothing, but when you wrong him he avenges himself instantly.Sicilian
Who got up, lost his place, who sat down, found it.
Sicilian
May waters drench peasants and lords or gentlemen, as many of them as it encounters.
Sicilian
When the ox is at the slaughterhouse everyone comes running with their knives.
Sicilian
He's digging his own grave.
Sicilian
The poor is not believed.
Sicilian