For many of us, the closest we'll get to experiencing a stranger in our home is when a bird somehow makes it in. Even when it's not knocking things over and pooping everywhere, that's a hectic situation for everyone involved.
But it still doesn't compare to the terror of discovering that what we thought was a safe, secure house had a weakness big enough to let a total stranger wander in.
The one time this happened to my family, it was just a guy whose friends left him behind after a party. But for one North Carolina college student, the situation was much more serious.