Juvenile impulse to play windows left artery rupture caused by fear of the affected function

"You see you are still playing computer, get up again tomorrow class! You ...", when his mother also continued against the son of "nagging", my son suddenly stood up suddenly raised his left hand to hit the window hard go, "Bang!" sound, broken window glass, broken a hole, and the boy's left hand moments "bleeding profusely." Mom scared silly, such as the freezing air like static; father rushed into the bedroom to panic ...Juvenile impulse to play windows left artery rupture caused by fear of the affected function