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
Heel (professional wrestling) personality traits such as arrogance, cowardice or contempt for the audience. Many heels do both, cheating as well as behaving nastily. No matter the type of heel, the most important job is that of the antagonist role, as heels exist to provide a foil to the face wrestlers. If a given heel is cheered over the face, a promoter may opt to turn that heel to face or the other way around, or to make the wrestler do something even more despicable to encourage heel heat. In American wrestling it was common for the faces to be American (e.g. Hulk