I used to hear them at the front door, scratching, clawing, pawing at the door, trying to get in.
I used to hear them in the walls, scratching, clawing, moving round inside the walls.
I used to hear them in the room, scratching, clawing, pitter patter on the floor.
Now I feel them behind my eyes, scratching, clawing, ever scratching, ever clawing.
You should go to bed earlier and give those eyes some rest. ;)