EE STATED THAT HE WAS PUTTING SUPPLIES ON THE ROOF BOLTER WHEN A PIECE OF DRAW ROCK FELL AND STRUCK HIM BEHIND THE RIGHT EAR. THE INJURY CAUSED A LACERATION BEHIND THE EAR REQUIRING 13 STITCHES. EE MISSED WORK ON 11-19 AND 11-20 THEN RETURNED TO WORK ON 11-22-04.