I had that, too, Snackrafice, and turning the door around fixed the problem. However, I had something pretty funny happen in a home with a back door. The visitors would come in the back door, through the entire (large) house to the front door, out to the porch, and then knock. I kept having the "who's in my house!" reaction until I finally caught what was happening. I had to lock the back door to visitors before they would stop it.