I guess I worded my post the wrong way. If Deb was not used to locking the door, then that may be why she didn't (IF she didn't, this has not been clarified) To you, shutting the door then automatically locking it may be second nature. But possibly not to her. Especially if she had been drinking, she just didn't think about it. Locking doors is NOT automatic for me. I grew up in a small town, we never locked our door, not even at night. For the most part throughout my adulthood I have lived in small towns, lots of time I have not locked my door. It has only been the last couple years that I lock my door before I go to bed, and yes, I still have to THINK about it.
And the reason I brought up the comment about not needing my husband to protect me is because of a couple posts mentioning DB being home at night alone with the kids, she may be nervous or spooked. My point was that just because Jeremy was not there does not mean she would have been afraid. It doesn't matter to me if I have a house full of people or am all by my lonesome. We don't know HOW DB felt about JI not being there at night.