I looked over his shoulder and saw a porcupine shedding his quills for the last time. The corner of the open door had been gnawed by him or some other creature. I knew what that meant. Many wild animals will dig and tear at anything the salty hand of man has passed over, and in the back part of the room I noticed an old table worried up and down its seams by the teeth probably of this little creature who had found food crumbs in the cracks.