Guard Dog

A guard dog, an attack dog or watch dog is a dog used to guard against, and watch for, unwanted or unexpected people or animals. The dog is discriminating so that it does not annoy or attack familiar people.

Read more about Guard Dog:  Barking, Breeds, List of Breeds Commonly Used As Guard Dogs, List of Other Guard Dog Breeds

Famous quotes containing the words guard and/or dog:

    Then the bird
    breaks with his beak the thread
    of dream within him,
    and the tree unrolls
    the shadow that will guard it
    throughout the day.
    Denise Levertov (b. 1923)

    A dog teaches a boy fidelity, perseverance, and to turn around three times before lying down.
    Robert Benchley (1889–1945)