ON 1/26/02 WHILE THE EMPLOYEE WAS BOLTING A BOOM HOLE A PIECE OF ROCK A SIZE OF A GOLF BALL FELL APPROXIMATELY 2 FEET FROM THE ROOF STRIKING EMPLOYEE ON THE NOSE, RESULTING IN A SMALL CUT. ON 8/23/02 THE EMPLOYEE HAD A BLACK SPOT SURGICALLY REMOVED, REQUIRING 2 OR 3 STITCHES.