First they explain how students have recently begun to expect their professors to issue trigger warnings, warnings that students expect for anything that might cause distress, in the name of protecting students who may be reminded of trauma by being exposed to certain topics. In demonstrating the fallacies of the warning concept, Lukianoff and Haidt cite Harvard professor Jeannie Suk's essay on teaching rape law when students are determined to be protected from unpleasant ideas and require warnings. He says it is like trying to teach "a medical student who is training to be a surgeon but who fears becoming distressed at the sight of blood (48)." This shows how students' desire for protection causes difficulties in teaching