EE WAS TRYING TO UNHOOK A CHAIN FROM THE ROLLS ROCK BOX. CHAIN WAS IN A BIND. HE LOWERED BOOM ON THE LOADER FOR SLACK. BOOM WAS RESTING ON THE BOX. HE JERKED THE CHAIN, THE BOOM SLIPPED OFF TH E BOX AND WHIPPED THE SLACK OUT OF THE CHAIN. HIHIS LEFT LITTLE FINGER WAS PINCHED BY THE CHAIN RESULTING IN A LACERATION OF THE TIP OF HIS LITTLE FINGER ON HIS LEFT HAND. FINGER TIP REQUIRED