Here is the good thing about FT:
Had you asked in this forum whether it would be a good idea to walk on the Ipanema beach sidewalk at 9pm at night with your Iphone and wallet, my answer would clearly have been a NO and I suspect that most other knowledgeable people would have said the same. If you wanted to walk there at that time, my suggestion would have been to bring only some small cash (R$ 20 or 30) just in case someone would hold you up and in all cases I would have said NEVER to run after your assailants.