My last cat, Snoopy, showed a great deal of empathy for me when I had cancer. After chemo treatments, I'd be lying in bed exhausted and in pain, and she would come and cuddle by my side and purr and purr. This is a way that cats try to alleviate their own pain, so I conjecture she was trying to help me as best she could. It did comfort me a great deal.

I have also had both of my cats bring home their kills to share with the family. While these presents were not really appreciated, at the same time... from the cat's point of view, she was providing for those she loved.