My cat, while quiet, affectionate and beautiful, can seem to be too smart. He has realized that he can get me out of my chair or bed by softly touching the blinds until I get up; then he leads me to his dish, waiting for me to feed him.
He has me trained instead of the other way around. But I love him none-the-less.
He will also walk easily on a harness without struggling. In fact, he is easier to walk than most dogs, staying very close to my feet.
He even gets in position so that I can put it around him. Very mellow, happy and content. I found him at the refuge league and am glad that I did.