I'm an awful person. One of my favourite things to do is to go to the terrible places like these ones, and start interogating one of the sales staff about their animals, in front of other waiting customers if i can. Then I basically prove that they know nothing about the animals under their care and make them look like an idiot. by the time i'm finished, the customer who'd been waiting to speak to them usually asks me stuff instead, and I tell them to go through a decent breeder and do their research before they purchase etc. I know it's mean, they're just doing their job, but if I can convince even one person not to give them money, that's okay with me
also, I only do it to the idiots who think it's okay to make up the answer if they don't know it.
On a side note, the pet shop near me, the one that used to have a herp room known as the morgue, has gotten a lot better lately, albeit in baby steps. The new owner's not nearly as awful as the old one. It's still got a long way to go, but they're getting there. I go there all the time and just chat to them, I've almost convinced them to put the rats into cages instead of glass tanks. The owner knows damn well that I won't buy anything off him while he's still stocking puppies and ferrets, but at least the reptile guy seems to be more knowledgable than most general pet stores than i've seen. Oh, and I live in Springvale which should give you a clue as to which pet shop.