Stiletto was used by anarchists as well as by members of various "Black Hand" (a method of extortion) organizations to assassinate Italian-Americans and others who either opposed the "Black Hand" or ignored its demands for blackmail. The "Black Hand" even established schools for training its members in the use of the stiletto. The emergence of fierce hand-to-hand combat in the trenches of World War I created a new need for stabbing weapons, resulting in the reappearance of the dagger and the stiletto. Many versions of these stabbing knives exist, some individually made by soldiers, while others were government-procured and authorized. On
Bart Gets a 'Z' during an early script where Zach's meltdown started with him giving all of the students "Z's" for their grades because he was staggeringly drunk, and even after it was decided to present Zach's meltdown differently everyone liked the title and kept it anyway. The episode name is a reference to the name of the Season 2 episode "Bart Gets an "F"", which was also referenced in the same season episode "Bart's Dog Gets an "F", the Season 10 episode "Lisa Gets an "A"". The novel Bart reads called "The Answer" is a parody of film and book, "The Secret". The