Ka kammala wannan magana: A ƙarshen shekara ta 1938, jim kaɗan bayan
A Kristallnacht, an sanya littattafan Kahn a cikin jerin "rubutu masu cutarwa da maras so" kuma ban da littafinsa game da jima'i, "Unser Geschlechtsleben", 'yan sanda sun haramta shi kuma duk kwafin da ake da shi sun hallaka. An yi amfani da zane-zanensa a cikin ayyukan da, wani marubucin likitancin Nazi ya amince da shi.