EE WAS FUELING TANKS ON FUEL TRUCK AND HAD FINISHED ONE COMPARTMENT. WHEN CLOSING LID, HE PINCHED RT MIDDLE FINGER AT NAIL BETWEEN LID AND MAIN BODY. EE REPORTED IT IMMEDIATELY BUT IT REQUIRED NO FIRST AID AT TIME. LATER ON EE SAW MORE BLOODDRAINED FROM UNDER NAIL. EE DID NOT MENTION THIS ON VISIT UNTIL 5-23-02, DR'S OFFICE DID NOT SEND ANY INFO UNTIL 5-28-02.