Rarer than any metal, any mineral, so rare that if you scan the entire earth, all six million billion billion kilos or 13,000,000,000,000,000,000,000,000 pounds of our planet, you would find only one ounce of it?
Self-defense is a common defense by a person accused of assault, battery, or homicide. The force used in self-defense may be sufficient for protection from apparent harm (not just an empty verbal threat) or to halt any danger from attack, but cannot be an excuse to continue the attack or use excessive force.
Common assault. Common assault was an offence under the common law of England, and has been held now to be a statutory offence in the United Kingdom of Great Britain and Northern Ireland. It is committed by a person who causes another person to apprehend the immediate use of unlawful violence by the defendant. It was thought to include battery.