labs, bully breeds especially pit bulls, and black dogs. don't forget hounds, too. nobody wants a hound here anyways. we have a hound at the shelter where I volunteer that in an ex-hunting dog and I would bring her home if she was good with cats.. she's just miserable. the small dogs and pups go fast around here! and the seniors go slow, too. We have a senior GSD at the shelter where I volunteer and she is soo sweet.