Medical training usually takes place in institutions that have a highly structured hierarchical system, and has traditionally involved teaching by intimidation and humiliation.[citation needed] Such practices may foster a culture of bullying and the setting up of a cycle of bullying, analogous to other cycles of abuse in which those who experience it go on to abuse others when they become more senior. Medical doctors are increasingly reporting to the British Medical Association that they are being bullied, often by older and more senior colleagues, many of whom were badly treated themselves when more junior.[11]