Charlie whistled "Amazing Grace" as he drove. It was all I could do not to whip my head around and snap, Are you kidding me? Couldn't he pick something more appropriate, like "Shout at the Devil" or "Don't fear the Reaper"? Some people had no sense of the proper music for a kidnapping.
Eugene Wigner wrote a famous essay on the unreasonable effectiveness of mathematics in natural sciences. He meant physics, of course. There is only one thing which is more unreasonable than the unreasonable effectiveness of mathematics in physics, and this is the unreasonable ineffectiveness of mathematics in biology.