Were chinchilla's

I am always curious why you don't see a lot of were creatures that are fairly useless. Think about things like the were hamster. It is possible that they are extinct. I mean if you think about it the instincts of a hamster are just worthless. Hide under the wood chips and stuff food in your checks. And the were chinchilla would probably be hunted to extinction. I mean you make them get mad an big and then kill them for a fur coat with no seams. So my guess isn't that there small furry helpless creatures have in the past been were animals but they were all killed off. Just a thought. Someone should write a book about it.