Teachers should be aware that humour is as beneficial to their own behaviour as it is to that of their students. Humour can help us see stressful situations in a more positive light, or at least a less pessimistic one. In the early 20th century, Freud made the point that humour can enable us to cope with stressful and anxiety-arousing situations. Charles Burford, meanwhile, who researched the place of humour in school cultures in the Journal of Educational Administration article "Humour of principals and its impact on teachers and the school", concluded that humour and laughter play significant roles in the coping strategies of teachers and students alike.