2 EMPLOYEE WERE LIFTING THE ROOFF OF A SMALL SHED (100 LBS) WHEN IT COLLAPSED CAUSING A TWISTING MOTION TO ONE EE. HE FELT A PAIN IN HIS RIGHT GROIN. IT GRADUALLY WORSENED. HE SAW DR. 1/10/00. DETERMINED TO HAVE A HERNIA. NOTE: EE RETURNED TO HIS REGULAR JOB BUT IS SCHEDULED TO HAVE SURGERY LATER THIS MONTH.