Stiletto designed the Fairbairn–Sykes fighting knife, a double-edged dagger with a long narrow point designed to optimize the blade for thrusting, though it was also capable of slashing strokes if the cutting edges were sharpened. Other variations of the F-S knife soon emerged, including the U.S. Marine Raider Stiletto, which was based upon the Fairbairn-Sykes knife, and the U.S. V-42 stiletto, designed from the outset to emphasize thrusting over cutting. During the 1950s, large numbers of folding switchblade or automatic opening knives with locking blades were imported from Italy to the United States. Most of these switchblades were side-opening designs, though
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