I don’t want to hurt you, but you can’t stay here! As we spend more time indoors seeking refuge from the twists and turns of year-end weather, chances are we’ll have some uninvited company. No, not your in-laws. We’re talking about pests. Ants flushed out of their backyard tunnels by autumn downpours or drawn in by the seasonal sugar rush. Mice making toasty nests in your floor vents. Spiders in the firewood. Silverfish in the drawers. Is that Santa I hear coming early down the chimney? — No, it’s squirrels.