Geronimo Diaz was clearly insane; but it was a wonderful, random sort of madness which conformed to no known model or pattern, an irresponsible plasma of delusion he floated in, utterly convinced, for example, that he was Paganini and had sold his soul to the devil. He kept a priceless Stradivarius in his desk, and to prove to Flange that this hallucination was fact he would saw away on the strings, producing horribly raucous noises, throw down the bow finally and say, "You see. Ever since I made that deal I haven't been able to play a note." And spend whole sessions reading aloud to himself out of random-number tables or the Ebbinghaus nonsense-syllable lists, ignoring everything that Flange would be trying to tell him. Those sessions were impossible: counterpointed against confessions of clumsy adolescent sex play would come this incessant "ZAP. MOG. FUD. NAF. VOB," and every once in a while the clink and gurgle of the martini shaker. But Flange went back again, he kept going back; realizing perhaps that if he were subjected for the rest of his life to nothing but the relentless rationality of that womb and that wife, he would never make it, and that Geronimo's lunacy was about all he had to keep him going. And the martinis were free.