we've had that happen several times at petco / petsmart. i guess that's one of the things about the stores, is everyone has different standards of *when* it is and isn't ok to bring your dogs. personally, we ONLY go on days that axle has had a flea bath. not only to make sure he's clean, but to make sure he doesn't have any fleas and it's less likely he might bring some home. what i hate more, though, is when people bring anti social dogs there and don't watch them AT ALL and they bite my dogs for no reason other than they were within jaw range.