Do it! Worst case scenario, it's still learning and job experience for your resume and a paycheck in the meantime. Best case scenario, you'll have a blast and a steady income as long as you want to stick with them. I've never seen a Petland before, but I work for PetSmart, where they lump fish, reptiles, birds, and small mammals together under one job listing, it's usually a lot of fun. My favorite parts of the job are dealing with the fish and squeezin' on the guinea pigs because they make those little "woop woop woop" sounds. If they make you cross train for small mammals watch out for russian dwarf hamsters. They're out for blood!