He that's down, down with him.

The proverb presents a harsh response to another person's misfortune: instead of helping someone in a weakened position, people add to that person's troubles.

Its force depends on how it is spoken. It may urge others to join an attack, or it may expose the cruelty of doing so by putting that impulse into blunt words.

Use it in discussing criticism or punishment directed at someone who has already suffered a setback. If the aim is to condemn that behavior, make the disapproving tone clear; otherwise, the words can sound like encouragement to pile on.