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
Lisa Gets an "A" from Homer's attachment to a lobster he brings home." Giving the episode a more mixed review, the Currentfilm.com staff called it "memorable", although "the majority of the episode remains uneven". They wrote that "The episode remains entertaining simply because of Homer's subplot," and compared Pinchy to Mojo the Helper Monkey from the season nine episode "Girly Edition" and Stampy the Elephant from the season five episode "Bart Gets an Elephant", which they considered to be "great (and brief) Simpsons pets". Lisa Gets an "A" "Lisa Gets an "A"" is the seventh episode of "The Simpsons" tenth season. It first aired