Three M, as a favorite union buster to hospitals, was one of the prime beneficiaries of the public treasury. Since hospitals receive money from many government sources, including the federal Medicaid program, a substantial portion of the hospital fees collected by Three M actually came from taxpayers. Now, it so happens that the costs of an employer's counter-organizing campaign are not listed as allowable charges to Medicaid, but for years Three M's hospital clients managed to get away with it by packaging union-busting costs with in-service training, which refers to training on site that purportedly brings some sort of benefit to patients or residents. According to testimony before Congress, a hospital watchdog agency in Massachusetts ordered six hospitals to return to the Medicaid program $250,000 in fees paid to Three M for their anti-union campaigns from 1974 to 1976.