This is what happens when you get impatient removing a crankset.
In the ER awaiting my 5 stitches. Hastily bandaged at home so as not to bleed all over my car. Also, don't go back and finish the job before the lidocaine wears off. When they tell you not to use the hand, don't use the hand. Now I have nice, new chainrings on a bike I can't ride.