I've had cats, I've had black cats. I love black cats the best. The way that the people and animals in this story were abused and murdered made me extremely uncomfortable. Yes, the violence was awful, and it probably does offend today's sensibilities. However, I was also uncomfortable because the narrator had once loved his pets and then became unhinged and tormented by their very presence, to the point that he was driven to murder. It really takes so little to drive us from love and adoration to hate and destruction, and that really is the horror in this story, I think. In the end, though, "vengence is mine," said the cat, and rarely have I been so satisfied with the outcome of a story.