The book is dedicated to the issues of parasitism and super-income. A sudden encounter with a snake will cause shock, fear or aggression in an ordinary person. The zoologist experiences completely different feelings for them - even tenderness. The author had similar feelings when studying thinking parasites. The average person feels hatred towards them, fueled by works of art. The result is a “senseless and merciless rebellion” as a consequence of the short-sightedness and greed of the super-rich, as well as the actions or inaction of the state. The author, as an animal psychologist, made an attempt to explore not only the harm, but also to find the benefits of thinking parasites. The main conclusion obtained as a result of the study is that what is needed is not a struggle to destroy parasites, but work aimed, firstly, at creating a system in which there will be little place for them, and secondly, at creating a morality that is uncomfortable for them, thirdly, to destroy the fundamentally unjust caste-like society. A sense of humor will tell the reader what not to take too seriously.