I haven't been in a bad pet store in a long time, but a few years ago I went in one that I left in tears because they were doing so many things wrong. They had bearded dragons and leopard geckos together and told me it was okay because the bearded dragons "had all their shots." What really sickened me was this large monitor lizard (3-4') cramped into a 20L tank, I mean literally smushed up against the glass, with a huge gaping, oozing wound (like 4-5 inches in diameter!) in its back with the heat light directly above it. It said "SHHH I'm in Quarantine!" or something on the front of the tank. I tried calling them and speaking to the manager but they didn't take me seriously either... ugh, frustrating.