Ungrateful Cat

I don't think cats are ungrateful. There are just some people that don't understand "cat-speak" so they think cats are ungrateful because of communication problems. Cats have different ways of telling you they are grateful for the love you've given them. I had a cat, sadly he is now gone from my life, (died a few years back) that I know had always known I'd saved his life, which I did twice. Once when I first rescued him from being thrown out in the street in a busy city, and when my ex tried to kill him, which I broke up with him and kicked him out of my place afterward. He always showed he was grateful to me by showing me constant affection. The two I have now have a funny way of meowing as their thank you to me for taking care of them. When I feed them, water them or whatnot, they look at me and meow in a different way then normal, as if to say "thank you".