and honest.

About his use of morbid jokes in his lectures, Kahn stated: "I was trying to shake things up. I wasn't trying to shock, but I did state things provocatively and sometimes humorously". Some of his black humor was considered offensive as he argued that in the aftermath of a nuclear war would probably cause humans to mutate into something hideous, leading him to joke: "It is possible, isn't it, that parents will learn to love two-headed children twice as much?" Reflecting the fashionable theories of sexual psychoanalysis that