I can't report them because, technically, they're not breaking the law. There's no law against selling unhealthy animals, as long as they don't make a health guarantee. Also, they do offer to exchange the animals, which is all that's required for business reasons.

As for writing to newspapers and putting up posters, big chain petstores can afford better lawyers than I can, and I have no interest in bankrupting myself and possibly losing my license - unfortunately, I can't *prove* that they're selling sick animals (since I don't see the animals immediately after purchase), and as a professional in the industry I'm held to higher standards of accuracy in issues like that. It's a lousy place to be, and it makes me feel like a coward, but the best that I can do is rant in my own journal about the general state of pet stores and encourage anyone who asks me specifically to look for a different place to acquire a pet. :(