To explain the necessity of the ban
I believe the correct answer is <span>Zaroff has no conscience, while Rainsford does have a conscience.
As you can see in the excerpt, Zaroff is not opposed to murdering other people, which he considers to be just a type of hunting. He doesn't value human life at all, and is indifferent towards whether they live or die, which is why his character is different from that of Rainsford's.
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Since Kenny had to catch Rufus up. Rufus thought that Kenny was his friend. Rufus didn't come to Kenny's house because Kenny laughed at the mean comment Larry Dunn said.
