Fractionals

From A Scanner Darkly, which I'm rereading:

At the wheel of his slow car, Bob Arctor forgot theoretical matters and did a rerun of a moment that had impressed them all: the dainty and elegant straight girl in her turtleneck sweater and bell-bottoms and trippy boobs who wanted them to murder a great harmless bug that in fact did good by wiping out mosquitos - and in a year in which an outbreak of encephalitis had been anticipated in Orange County - and when they saw what it was and explained, she had said words that became for them their parody evil-wall-motto, to be feared and despised:

IF I HAD KNOWN IT WAS HARMLESS
I WOULD HAVE KILLED IT MYSELF.

That had summed up to them (and still did) what they distrusted in their straight foes, assuming they had foes; anyhow, a person like well-educated-with-all-the-financial-advantages Thelma Kornford became at once a foe by uttering that, from which they had run that day, pouring out of her apartment and back to their littered pad, to her perplexity. The gulf between their world and hers had manifested itself, however much they'd meditated on how to ball her, and remained. Her heart, Bob Arctor reflected, was an empty kitchen: floor tile and water pipes and a drainboard with pale scrubbed surfaces, and one abandoned glass on the edge of the sink that nobody cared about.