Yes, that sounds paranoid to you, and I know the media blows things up, but we in NYC often hear of push-in break-ins, and God forbid, people who break in a wait for someone to come home to hurt them. I knew someone who got mugged just by walking down the street at like, 11am! So it's not as bad as the media makes it out to be, but it's a definite possibility, so...my door's always locked.