A shocking year at Six Flags ends in the loss of nearly two million customers and a collapse in stock value. The world's largest theme park operator reported the loss in attendance following the implementation of an initiative to lessen the presence of 'rowdy teenagers' in their parks, according to the company's CEO Selim Bassoul. The Texas-based theme park's shares tumbled 18% to $21.12 Thursday after it disclosed attendance at its 27 parks was down 22% from this time last year, which is wildly different when compared to Disney's reported 70% rise in park attendance year-over-year. Bassoul, who was named...