The most dangerous machine in your house may be your computer. Each year, 9,300 Americans suffer a computer-related injury. In all age groups, the commonest injury (39%) was laceration from a sharp corner. Among adults, falling equipment accounted for 21% of injuries. Hands, feet, arms and legs were the most frequently injured parts of the body (57%). Children under 5 suffered 13.4% of all injuries — most of them to the head, and most a result of climbing on or near equipment. The ubiquity of computers and the fact that many households own more than one are driving the numbers.