The article focuses on investigating pre-service teachers' expectations of their future teaching career, in particular concerning teacher-student interrelations. In an attempt to comprehend why people choose teaching as a professional career, a conceptual model titled "Teachers" altruistic-narcissistic classroom expectations' was designed and tested. The model puts forward for consideration the idea that pre-service teachers view their future relations with students as being based on four basic psychological foundations: genuine altruism, paternalistic altruism, benevolent narcissism, and genuine narcissism. A study to test for the validity of this model, using Facet Theory and smallest space analysis as the methodological approach is reported. One hundred and sixty student-teachers participated in the study. The findings provided evidence in support of the model's validity. It is argued that altruism and narcissism conjointly may be regarded as factors motivating people to opt for teaching as a career, and that altruistic and narcissistic expectations can predict teachers' classroom behavior.