I understand that the author is a trainer of dogs. I hope his knowledge of learning and training is better than his knowledge of vaccination and medical procedures. As horror, it works, because in horror reality is suspended; but for me, a dog trainer of many years experience, and as a person who has worked in veterinarians offices, the details are so unreal and inaccurate that I have a hard time finding the basic premise. I think Mr. Katz needs to become acquainted with a good editor who can help him sort out his writing.