A third negative feature of the media is the amount of violence on the screen– both in real events in the news and movies or in TV programs. It scares people and gives them terrible nightmares; the fear created by media images and language can last for a long time. On the other hand, frequent viewers of “action programming” get used to its messages: they might begin to believe there is nothing strange or unusual about violent crime, fights, killing, and other terrible events and behavior. Studies show that certain personality types are likely to have strong emotional reactions or dangerous thoughts after some kinds of “entertainment.” They may even copy the acts that they see on violent shows—start fires, carry and use weapons, attack people in angry or dangerous ways, and even worse.