The bolt didnt break. In fact I cant lossen it. I was using a torque wrench set at 70in/lbs, which is what the low end of the spec is. I DID NOT GET A SHOCK, I just saw and heard a very small arc. I was using white lithium grease on the threads. The bolt and chainrings are both aluminum. Yes, it did happen, and I was not drinking then. I am now though.