In another example, a blind person must communicate with the animal in such a way that the animal can recognize that the person is aware of the surroundings and can safely proceed. If a blind person wishes to descend a staircase, an animal properly trained to exhibit intelligent disobedience will refuse to move unless the person issues a specific code word or command that lets the animal know the person is aware they are about to descend stairs.[7] This command will be specific for staircases, and the animal will not attribute it to stepping off a curb or up onto a sidewalk or stoop.