I think doubt is the seed of all fear. Or at least, that sounds really deep at this very moment. When you close the door, doubt suddenly creeps into you. Are you really alone? What if somebody got in? Would you hear them? Do you listen when you finally go out? What was that sound? Probably nothing. Why am I holding the fishtank cleaning knife? I've had the joy of being at home all alone this past week, and only once has there been a sudden loud noise from upstairs that I never found the cause of. Probably nothing. Sweet dreams!