The Discoverer of Leukemia
Rudolf Virchow was one of the two men who first described leukemia in 1845 (the other was John Hughes Bennett, an Englishman who was Professor of Medicine in Scotland). Virchow, as well as being the greatest pathologist ever, was also a Public Health Specialist and social reformer, and something of a politician.
In this respect he quarreled with Bismark, the German Chancellor. Bismark challenged him to a duel, and being the one who was challenged, Virchow had the choice of weapons. He chose sausages.
I came across this fascinating fact and the mind's picture of two hirsute Germans bashing each other with German sausages was funny but undignified.
Bismark withdrew his challenge.