TIRE HAD BEEN MOUNTED, WAS ON THE TRUCK, BEING AIRED UP, BUT WOULD NOT SEAT. EE WAS REACHING INBETWEEN RIGHT REAR DUAL APPLYING LUBRICANT AROUND TIRE WITH FINGERS. TIRE SPRANG INTO POSITION A ND BEADSEAT BAND SNAPPED AGAINST LOCK RING. THISMOVEMENT CUT FINGERS AT THE PINCH POINT. LEFT HAND 3RD & 4TH FINGER ENDS AMPUTATED.