It’s telling that Dog is enjoying the last days in his new form as a small dog. The novel suggests that Dog is becoming who he was destined be when it suggests that he’s overcome by “intrinsic small-dogness.” With this, the novel shows that due to Dog’s relationship with Adam, he’s perhaps not
supposed to be the fearsome hell-hound that Crowley expected him to be. Meanwhile, the fact that Adam decides so quickly that Anathema isn’t a witch based solely on how she looks is humorous; it suggests that Adam believes he should be able to identify evil outright.