JOB BOXES WERE PLACED BACK TO BACK. WITH THE LID LIFTED ON ONE, THE LID WOULD STAY OPEN. HOWEVER WHEN BOTH LIDS WERE OPEN AT THE SAME TIME, THE OPPOSITE LID WOULD PUSH THE OTHER CLOSED. EMPLOY EE HAD ONE HAND ON THE BOX WHEN ANOTHER EMPLOYEE LIFTED THE OTHER LID, RESULTING IN THE LID DROPPING ON HIS RIGHT PINKIE AND RING FINGER.