Would you "rescue" a pet from the pet store?

It would depend on the animal at the pet store. I have bad luck with healthy fish so I would hesitate taking on a sick fish. But if it was a cat or a dog, and I thought it was just because they were in the glass cage. Sometimes, even in a normal pet store, perfectly healthy animals loose body mass because they are only walked for a couple minutes a day. So if the animals just look like they would get better with some basic TLC, walking, and food, I would do it. I probably wouldn't do it if I thought they had something serious like an ulcer of something. Pet stores have insurance for that.