CLIMBING OUT OF THE KITCHEN ON A HAULAGE MOTOR WHEN HIS FOOT CAUGHT INSIDE THE MOTOR. HE TRIPPED AND FELL STRIKING HIS KNEE AND SHOULDER AGAINST THE MOTOR FRAME CAUSING A CONTUSION AND SWELLING TO HIS LEFT KNEE AND LEFT SHOULDER. HE CONTINUED TO WORK ON HIS REGULAR JOB. HE EVENTUALLY WENT TO A DOCTOR & WAS TAKEN OFF WORK ON 8/16/05 FOR AN OPERATION ON HIS LEFT KNEE.