Found this somewhere in www.family.org.my on domestic abuse:
Domestic abuse is almost always a technique for gaining and maintaining control, and likely is born out of the abuser’s own pain. An emotional abuser keeps others under his thumb by blaming and shaming. He uses name-calling, swearing, and other forms of contemptuous speech to convince his victims that they are unworthy of better treatment. In most cases, he is highly manipulative, displays narcissistic tendencies, and flatly refuses to acknowledge any personal responsibility for family dysfunction.
Cleffairy: How true. It is a technique of gaining and maintaining control in an awful way.