I know it may sound odd but I don't think my cats like to play with me! I've had them since they were babies and they used to love it when I'd bat around tinkly balls with them or drag a little mouse around they could chase. But for a while now I've been trying to play with them and they'll give it a half-hearted bat or chase and then act bored. I know they're not unhealthy because they eat, poo, and sleep all the same as before. They don't seem to have problems playing with each other either! Maybe they just think I'm a lame playmate?!