Knife fights are never what they look like in the movies. They aren't a match between two men both lowered into crouches, each jabbing tentatively at the other. In an actual confrontation, people get cut. There was no way to avoid it. A war of attrition predicated on trading shots. Calculated real-time risk assessment. A maxim I learned many times over the years, bearing more than a few scars to prove as much. One I...