I have these moments. My area has a terrible knack of luring in thieves and drugheads, so it's completely natural to be paranoid. :3
When I'm alone, I grab something (gun, bat, knife, etc) and call Jero just so someone is on the phone while I search. Worse thing is that there are a ton of windows in one section of my house and while I can easily see if it's my parents coming in, others can see in. Don't really have to do this now that we have a huge fence and an awesome dog, but still.
And now I scold.
You idiot. Don't post on RPG unless there is literally nothing for you to do. Cops are called. You're hiding, or you have found out that no one is in your home. Silly.