[Glitter650]

I lock my doors, and I have a locked door/gate thing that goes up the back of my building where I also back the back door. I also live in a large city, in a "good" part of the city, but still a big city. I always locked my doors anyway even when I was at home in the 'burbs.
I am pretty trusting with leaving my stuff around, say at a desk while I go look for a book in the library, or on a chair while I go buy coffee at the airport or whatever. Now that I think about it, I should probably be more careful about that.