Interesting. One of my cats will sit with me or brush against my legs if I am sick or feel sad. We are both sensitive. He is diabetic and I have to give him his shot at 10 each night so it helps me to remember my medicine at the same time. I wish I could train him, but he is kind of older and I'm not sure what I would want him to learn. Maybe I will research therapeutic cats and train the next kitten I get.