On November 3, 1933, the Nazi government demanded that professors begin their lectures by giving the Nazi salute. Köhler thought this was a violation of his own beliefs and told his students that he was unable to engage in such an act. His explanation was met with applause, from both Nazi sympathizers and rebels alike. His situation at the institute began to deteriorate more quickly after this statement. In December 1933, Nazi officials stood outside Köhler's seminar room. As students left, the officials stopped them and examined their student cards. Although Köhler did not interfere, he later contacted the institute rector, Eugen Fischer, complaining that an unannounced raid had occurred. Köhler also took his argument to the Minister of Education. He was told, "there is nothing I care to do for you. Heil Hitler."