The article considers theoretically the standards of human behaviour and pathology in the area of interpersonal relations in the reality of the post modern era. The author presents the thesis that the perception of normality (acting according to some accepted standards and moral rules) has changed negatively as the images of behavioural standards tend to be more and more relative. On the basis of some criteria, such as biological, pedagogical, psychological, social etc., the article illustrates the very process which, in consequence, leads to dramatic changes in the interpersonal relations in general. According to the author these changes are a real threat to the concepts of modern upbringing and a real challenge for anti-social behavior prevention as well.