It scares me to watch those TV shows where people put up with critters of all kinds on a daily basis. Its your home if something is out of the ordinary I think I would investigate and solve the problem. Now unless you have the Amityville home, just for the record a house says get out, I’m out of there. No whining, no excuses the door wouldn’t hit me on the way out. If you hear noises coming from the attic or crawlspace its time to either take care of it or call a Pest Management Professional.
I received a call this week and someone thought something was dead in their wall, probably a squirrel or a rodent. That noise or that smell will alert you to a potential problem.