Californian Phillip Martin is lucky to have a dog that helps around the house. Denny the Great Dane has no trouble understanding the command to ‘bring Mommy the broom’. Watch as he happily grabs the handle in his mouth and proudly runs to his owner with the broom. Any pet would bring home a dead mouse or bird, but Denny’s a clean dog with no time for that; he knows there’s work to be done. Credit: YouTube/phil280.