But then again, some Nazis really did seem to revel in their cruelty, and some of the atrocities done at the time of the Holocaust were done with enthusiasm and relish. I said earlier that sadists are rare, but if they do exist, they were probably overrepresented among, say, concentration camp guards. Certain individuals seem to be drawn to violent conflicts, showing up not because of ideological, religious, or political commitments, but because they enjoy torturing, raping, and killing people.

