Mouse!

[eieio]

mice are more than just a nuisance......
mouse droppings may contain Hantavirus
another reason you don't want them in there, ESPECIALLY in the ductwork of the HVAC system
http://en.wikipedia.org/wiki/Hantavirus

[disallow]

hate freakin mice. I live on the corner of a farmer's field, and there is a big stack of straw bales about 1/4 mile from my house teeming with them. Fall ends up being a 'frantic' time for the mice, and my Travel Trailer has been invaded several time. Glue traps are the way to go, though a little gruesome on the disposal...