For years, I lived in "The big city," which meant I was literally never safe, even in my own home. Take my word for it, it was that kind of area. Now that I live back in a small New England town, I sometimes even leave my car unlocked if there is nothing of value. But then too this is one of the newer cars which can't be started without the chip that is in the key.... I still lock the door of my new apartment, and have convinced myself it's ok not to have a second lock or a chain. But the door is locked all the time. If anyone did come into the building, they'd likely be out of breath by the time they got to the 3rd floor. I am.