EN
The article exhaustingly defines mobbing and similar behaviours based on abuse. The author briefly describes the behaviour in the school context. She analyses the problem, its causes and possibilities for its prevention. The author puts a special emphasis on all parties taking part in the abuse, outlines types of victims and perpetrators, and discusses the parents’ and especially the teachers’ role. The results of the author’s research are presented from 14 junior high schools in the Warmian-Masurian voivodeship.