EE left work early on 5/5/10 to attend a personal buisness. Prior to leaving work EE did not complain or report any injury. EE called in on 5/6/10, said he had hurt his back, didn't know if it was at work or home. He only saw dr 1 time, dr said he could RTW on 5/17/10 with no restrictions. Have not found any evidence of injury, still investigating EE's failure to report incident.