I am tearing apart my semi-finished basement with the intent to finish it off properly. In removing all the wood paneling (very attractive, I know) I came across a small pile of wood shavings sitting up in the balloon framing of my basement, next to where the gas line enters the house through the foundation. There are no gaps whatsoever, and I have inspected and can find no rodents or otherwise in the area. Where could these shavings have come from? Am I missing something? I want to make sure we have no infestation before I go ahead and insulate and sheetrock the walls down there.