Wilhoit, my GSD, certainly learned words, but it was his comprehension of nonverbal cues and situations that was close to uncanny. Since his whole attention was focused on me--how I was doing, was I O.K., did I need help--I had to learn to become a better person. If I worried, he worried, and since I wanted him to be as happy as possible, I had to learn not to worry. When I was heavier, I would occasionally had sleep apnea, and had it once during Wilhoit's seven years with me. I was aware of waking up peacefully and gradually, then realized Wilhoit was breathing gently in my ear and also realized I had just stopped having sleep apnea. As soon as I was fully awake, Wilhoit just quietly went back to his dog bed beside mine and went back to sleep. If he had awakened me by actually touching me I would have been really startled. It amazed me how he seemed to know just what to do. He was almost always a very astute judge of people as well.