Especially a really tiny doggo like a teacup Pomeranian, pug, or Chihuahua. But before you snap up one of these pocket-sized versions of man's best friend, you might want to think twice.

For people who love small dogs, there may be no pooch more appealing than one of the teacup dog breeds. After all, while larger pups can make great choices for farm and guard dog work, there's ...