I went out to get the mail yesterday. There was a bill in there that bothered me and I was reading it while coming back in.
I went upstairs to do some things, about 2 hours later I come back down to find my front door wide open.
If I don't lock my front door the wind can blow it open.
It says the couple thought the door was locked.
It's one thing to say "keep your doors locked" But unless you institute a procedure where you actually go and check each door to make sure it's locked - every night, it's inevitable that you'll leave one unlocked one night. A better alternative is an electronic system that verfies that the locks are activated / or they are in the locked position. (different from monitoring whether a door or window is open or closed).