Muggers will always come to nicer places as they think the people living there must have better stuff to take, they also assume that the people who live in these areas have a naivety to this type of thing and will therefore be a lot easier to mug and get away with it... Sadly I have lived here all my life and know a lot of people who have had this terrible experience, I think the best and hardest thing to do is to stand up for yourself and not be put off going anywhere just because your worried about bumping into one of these muppets! :)