I was curious as to what people thought about those micro chips they can put into your cat. What info does it have? The only thing I know, is that if your cat has one, and it gets picked up be a shelter, they can scan for it, and call you about your cat. It sound handy, but I don't have any experience with them. My cat doesn't have one, and she never goes far when outside. Many cats stay in, so I suppose that it wouldn't be nesseccary then. I was just wondering if anyone had experience with them.