I remember reading an account of an older lady and her three dogs, two small & one large. In the winter, the two little dogs could not place themselves in front of the fireplace because the big dog lay closest to the fire. The two small dogs would run to the front door and bark. When the big dog arrived at the door, he would return and find the small dogs in his place near the fire. One particularly cold night, all three dogs began furiously barking at the front door. The old lady went to see, when she returned the two small dogs were in front of the fire and the big dog was in the lady's chair.