You know the feeling you get when its late at night, you’re home alone, and you hear a precarious sound from the opposite side of the house. You immediately go on high alert and can’t help but investigate.
Maybe its an intruder, maybe its some creaky pipes, maybe a giant spider, whatever it is, you have to find out. You know in all likeliness that it is probably nothing, but it would help you sleep better to know for sure.
You check it out and sure enough, it was nothing. Just some wind causing tree branches to brush up against the side of the house. Now you can sleep peacefully.