http://www.galactic-guide.com/articles/2R9.html (New York (1993): Common mugging methods: 'A pickpocket never works alone; there are always at least three people: a blocker, a snatcher, and a shill. The blocker forces you to stand still long enough for the snatcher to grab your wallet and then pass it off to the shill in case you notice it is missing . . .') http://www.marginalrevolution.com/marginalrevolution/2005/08/tips_to_avoid_b.html (Lima, Peru: Stride with confidence and purpose, even if you are utterly lost. Carry a glass bottle, a coke bottle is best (it must be non-alcoholic). Occasionally, take a drink as you stride towards your "destination." The bottle makes a handy weapon but, unless it comes to the worst, I do not advise that you use it (just give them your money). The muggers, however, don't know that. Deterrence is your best defense