When I lived in town, on a street that was somewhat common for people to walk down, twice (that I know of) someone had walked up, tried to open my door, then wa

When I lived in town, on a street that was somewhat common for people to walk down, twice (that I know of) someone had walked up, tried to open my door, then walked off after finding it locked. The amount of work to break into that house was quite minimal, but apparently a locked door did help.