An emotionally disturbed boy guns down several people in his school; the shooting is not shown at all in the film but there are references to the details of it, on TV and in conversation.
A man catches a boy who has broken into his house, he grabs him by the throat and pins him to the doorframe for a moment before letting him go. The man then cuts his hand on a piece of broken glass; he is seen with a bandage around his hand from then on. At one point he lies in bed and the blood seeps through the bandage, some of it smears on his face.
A man and woman have a huge argument, he smashes a DVD which greatly upsets her.