Seeing a squirrel indoors provokes an intense cognitive-dissonance moment. Squirrels are supposed to be outside critters. I just realized that today.
There had been a scratching noise in the attic-apparently some kind of critter had gotten in there somehow, and couldn’t get out. I went up to see, but it immediately became quiet as soon as it heard me. I left the attic trapdoor and ladder down, so that it would have a chance to climb down. It did, thus the squirrel. I propped open the door and convinced it to leave, which it was happy to do once it figured out the window was impassable.