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

Answering to impulsivity and being a hero should only come at a time when one knows what he or she is capable of. Your mercy will always come with a price once you took a life under your wing. Think about it first if you will be able to care for it. If you suddenly got into rescuing, research and make efforts into caring for the animal. If you really have no time to care for it, learn how until you've found someone willing to take it off your hands.