I think that zarrof thinks that because rainsford chooses his prey and cares about what animal he kills. its something like that.
hope it helps!
Simon and Piggy were not all that different. Simon was good and kind, but perhaps a little bit braver than Piggy. Piggy was timid, and vulnerable from years of torment and bullying, but somehow still a good person. Although the world around them seemed to be going mad, they both remained kind, whereas characters like Ralph and Jack added to the madness, and caused even more problems.
The word ached is intransitive
