A.   Unlawful Acts: It shall be unlawful:
      1.   For the owner or keeper of any dog to permit such dog to run at large.
      2.   For an owner of a dog to permit such dog to go upon or be upon the private property of any person without the permission of the owner or person entitled to the possession of such private property.
   B.   Violation Regardless Of Precautions: The owner of any dog running at large shall be deemed in violation of this section, regardless of the precautions taken to prevent the escape of the dog and to prohibit it from running at large.
   C.   Declared Nuisance: Any dog running at large in violation of the provisions of this section is hereby declared to be a nuisance and a menace to the public health and safety, and the dog shall be taken up and impounded as provided in this chapter. (1979 Code § 13-244)