Russians, obviously. Quality UK newspaper The Sun reports:
A SCIENTIST accused of attempted murder in Antarctica stabbed his colleague because “he was fed up with the man telling him the endings of books,” it has been claimed.
Scientific engineer Sergey Savitsky, 55, became enraged and stabbed welder Oleg Beloguzov, 52, with a kitchen knife.
The victim is recuperating in Chile. The stabber is being held in St. Petersburg.
Adds The Sun's Will Stewart: "Reports say the altercation was fueled by alcohol."
[Thanks, Heather!]