4 MEN WERE PICKING UP RAILROAD TIE TO STACK ON TOP OF ANOTHER RAILROAD TIE TO MAKE A LEVER AREA TO SET A BIN ON WHEN SITTING TIE DOWN IT SLIPPED AND CHOPPED ABOUT 5"" ONTO EE FINGER TIP AND A R OCK. CRUSHED FINGER TIP ON R.H. MIDDLE FINGER SOTHAT IT HAD TO BE REMOVED FROM 1 ST JOINT.