Common sense tells us that engaged employees are the lifeblood of an organization, whereas disengaged workers can poison a business when they negatively impact the workplace. A recent Gallup survey shows that 32% of U.S. employees are engaged in their work while 68% are not–and 17.2% of those disengaged workers are "actively disengaged." What can actively disengaged employees do to your organization? Name virtually any performance metric, and they can decrease it. Such employees aren’t just unhappy at work–they are often undermining the efforts of engaged workers.