EE WAS ROOF BOLTING AT THE TIME OF THIS INCIDENT. A ROCK FELL & LANDED ON THE CANOPY OF THE BOLTER. AS EE STARTED TO RUN AWAY FROM THE BOLTER HEPLACED HIS HAND ON THE TRAY & A PIECE OF THE ROC K BROKE OFF & FELL ON HIS HAND, SMASHING IT BETWEEN THE TRAY AND THE ROCK. THIS CAUSED A LACERATION ON THE SIDE OF HIS HAND TO HIS LITTLE FINGER.