Provocation: What is provocation? Is provoking someone a crime?

Provocation (legal)
http://en.wikipedia.org/wiki/Provocation_(legal)

Provocation in English law
http://en.wikipedia.org/wiki/Provocation_in_English_law

In Law, What Is a Provocation?
http://www.wisegeek.com/in-law-what-is-a-provocation.htm

Self-Defense Overview
http://criminal.findlaw.com/criminal-law-basics/self-defense-overview.html

Is provoking someone a crime. “inciting a riot/fight” or disturbing the peace
“there is no law against emotional abuse. it is not legally considered abuse.”
ref: https://uk.answers.yahoo.com/question/index?qid=20091128111208AAb8jRu