They can be demanding that is for sure. I have a rescued cat from outside, her mother was ran over, my husband found her cold and wet. Tiny little thing. She was very sick when he first brought her to me. Vet visit she had a chest cold and they were unsure if she would make it. I nursed her day and night for 4 weeks. Finally her chest cold cleared, she began eating better and loved her milk replacement. Not to mention cuddling. That was about 4 or 5 years ago. Now, if I am working she'll jump up here and declare it Melody time by trying to climb onto my computer. But, it never falls whatever she does she knows she is my baby and who to run to when she isn't feeling good.