EMPLOYEE CALLED 3/7/03 TO SAY HE HAD A SHARP PAIN IN RIGHT THIGH. HE SAYS HE MAY HAVE HURT IT BY WALKING THE ""WRONG WAY"" ON THE MUD BELT ON 3/5/03 - OR HE MAY HAVE HURT IT 2 WEEKS AGO WHILE WO RKING ON THE DRILL TRUCK TOWER. NORE: ON 2/21/03 EMPLOYEE CALLED IN TO SAY HE HAD HURT HIS GROIN AT HOME THE NIGHT BEFORE. HE WAS OFF WORK UNTIL 2/27/03.(SAME TIME HE SAYS HE HURT IT ON DRILL