WHILE UNWINDING 2""CONDUIT ELBOW WITH MOTOR LEADS INSIDE THE CONDUIT IT SLIPPED OUT OF HIS GRASP & LIKE A SPRING IT SPRUNG BACK & HIT HIM IN THE JAW. HE CAUGHT HIMSELF FROM FALLING OFF THE LADD ER. HE WAS TREATED & REMOVED FROM WORK FOR 2 DAYS DUE TO THE BACK SPASMS FROM BREAKING THE FALL.