How should a Buddhist respond to Bullying / Bullies?

How should a Buddhist respond to being bullied / bullying? Obviously there are many admonitions against bullying / related behavior in the suttas, but I'm looking for specific actions that should be taken in response to bullying. Some examples: - Being bullied at school by a stronger person. - Being harrassed at work by a coworker. - Being robbed / attacked in the street. - Dealing with racial/sexual/other forms of bigotry. - Dealing with neighborhood gang / police violence. - Dealing with colonialism / imperialism.