 Which brings us to the corporate play that cinched this year's sleazy for Tyson. Waterloo Slaughterhouse supervisors actually knew that the back-to-work order would sicken hundreds, but not exactly how many. So, managers organized a winner-take-all betting pool on the percent of employees who would test positive. It was simply something fun, said one, kind of a morale boost. I was traveling through Illinois when I was invited to stop and sing at a memorial.