[quote]"If you say in the first chapter that there is a rifle hanging on the wall, in the second or third chapter it absolutely must go off. If it's not going to be fired, it shouldn't be hanging there." —Trope Namer Anton Chekhov (From S. Shchukin, Memoirs. 1911.)[/quote] [quote]Chekhov's Gun is a literary technique whereby an unimportant element introduced early in the story becomes significant later on. For example, a character may find a mysterious necklace that turns out to be the power source to the Doomsday Device, but at the time of finding the object it does not seem important.[/quote] I'm usually pretty good at noticing them. In Star Trek: Into Darkness when [spoiler]Kirk died I instantly remembered that Khan's blood can heal people.[/spoiler]