What can be done about bullying?

Depends: If bullying involves children, school authorities and parents should be informed. They can evaluate situation & take appropriate action. Kids being bullied should have opportunity to speak with therapist. They can become depressed and suicidal. When it occurs in adult situation, boss or supervisor should be aware of situation. Therapy is often a good place to talk it over and deal with the impact.

Tell someone: Find someone you trust and say something. Keeping it inside does nothing. Depending on the context, find out what resources you have at your disposal to stop the bullying. DO NOT TAKE THE LAW INTO YOUR OWN HANDS.