driving. For example, in 1990 in California, a 22-year-old man, angry because a clerk would not sell him beer, purposely drove his car into a gas pump at a convenience store. The crash caused all eight pumps to explode, destroyed the gas station portion of the business, and caused $500,000 in damage. In 1993 in Pennsylvania, a psychiatric patient crashed his station wagon through the gates and a chain link fence at the Three Mile Island nuclear power plant before striking a parked truck near the turbine building. In 1994 in Washington, D.C., a 23-year-old man drove a stolen car through the lobby doors of WTTG-TV in an effort to attract attention to a mysterious new AIDS drug. Aggressive Drivers and Crowds In at least 22 cases since 1990, aggressive drivers have intentionally plowed their vehicles into crowds of people. Motor vehicles are extremely powerful weapons; when a car or truck is aimed at a crowd of people the result could easily be dozens of dead and injured. If a person is enraged, irrational, and impulsive enough to kill one person, he or she may also be irrational, impulsive, and crazy enough to kill many people, depending on the circumstances. For example, in 1991 in California seven people were seriously injured in a nightclub parking lot when a 26-year-old man drove his Mercedes-Benz into a crowd. The crowd was blocking the exit to the lot and the driver grew impatient waiting for an opening. Similarly, in 1993 in Alabama a