history lesson.
When Malcolm X was examined for the World War II draft, military physicians classified him to be "mentally disqualified for military service." He explains in his autobiography that he put on a display to avoid the draft by telling the examining officer that he couldn't wait to organize with other black soldiers and get his hands on a gun so he could "kill some crackers". His approach worked, and he was given a classification that ensured he would not be drafted.
Ahh, how history makes me giggle.