Brazil is full of crime and a lot more dangerous than the parts of the world where I lived in my life. Stories of friends being robbed are not uncommon, robberies by armed people in the streets and on the highways are in the news every once in a while. And especially in a giant city of São Paulo people tell you to be carefull and even I have a hightend sense of alertness, even though noghting every happend to me there. But people tell you to not carry valuables at night, take only one credit card to pay and some small bills to pay off a robber, if you are unlucky enough to find one. And then I visited a friend who does not even close her front door when she leaves the appartment. OK, there are only two appartments per story and a porteiro is keeping an eye on the people entering and leaving the buidling and there are cameras in all the elevators, but still. Not locking your front door so that everyone can enter made even me feel a little strange and I thought: what a wonderful challenge to all the security issues.