It is highly dependent on where you live. And it’s not density-specific, either. Some cities are sketchier than others. Some rural areas are sketchier than others.

In most cities a block really does make a difference. Where I am I wouldn’t feel afraid if I forgot to lock the door one night. I think it’s weird not to now (having a woman in the house opened my eyes to a lot of new horrors I never once had to worry about).

However, if I went 15 blocks in one direction or another, damn right I’d be sure to turn the car around to make sure I locked the door.