2 dreams about locking?

I dreamed that I was in my office, but it didnt look anything like my real office. It was a really large, old looking wooden bungalow, and our office was in there as well as other people's offices and in my dream I was kind of obsessed with keeping doors locked. It's kind of hard to explain. And then the next night, I dreamed I was at the house of my friend and I was locking up her house before leaving it. Nobody was there except for myself, supposedly, but even as I was locking it, I had a feeling someone was there, maybe an intruder, and I got nervous and locked it up without looking to see who was there, and then left. Next I was then in my Uncle's house. Nobody was there but myself, and I decided to call my friend's house and her mother answered the phone and I said I'd locked the house well but then got worried I might have locked someone in by mistake and she was telling me it was fine, she was alone. And then I was locking up my Uncle's house too. What's this all about?