This rumor has been floating around for years. If you're getting robbed and forced to take out money at an ATM, you can alert police by entering your PIN in reverse, but still get the money out so the bad guy is none the wiser. The locally based Snopes.com calls the rumor false and gives a history of the technology, which was first patented in 1994 by a Chicago businessman, but hasn't found an real-world use. Even a bill related to the idea went through the Kansas legislature but never became law. However, the LA Times reports today that Councilman Greig Smith, in his new role as chairman of the Public Safety Committee, wants to explore the technology in light of teenager Lily Burk's murder. She was killed after attempting to withdraw money from ATMs with a credit card (it never worked). Smith says the technology would cost $25 per ATM to install. If this technology were to become citywide, ATM robberies would likely become seldom, or at least and unfortunately, more efficient. more ›