“Over time both parents and child figure out that the more quickly they get enraged and threatening, the more quickly they get what they want—the parents get obedience or the child gets a reprieve from a command. When this process goes unchecked over many months, it can lead to confrontations that end in parents physically abusing their children or the children destroying property, attacking the parents, holding their breath until blue, banging their head against a floor or wall, or hurting themselves in other ways. This is how “No!” escalates into violence in some families.”