Quote from : Why Does He Do That?: Inside the Minds of Angry and Controlling Men Book

Alcohol does not a change a person’s fundamental value system. People’s personalities when intoxicated, even though somewhat altered, still bear some relationship to who they are when sober. When you are drunk you may behave in ways that are silly or embarrassing; you might be overly familiar or tactlessly honest, or perhaps careless or forgetful. But do you knock over little old ladies for a laugh? Probably not. Do you sexually assault the clerk at the convenience store? Unlikely. People’s conduct while intoxicated continues to be governed by their core foundation of beliefs and attitudes, even though there is some loosening of the structure. Alcohol encourages people to let loose what they have simmering below the surface. ABUSERS MAKE CONSCIOUS CHOICES EVEN WHILE INTOXICATED