excerpted from from secret service dogs: heroes who protect the president of the united states by maria goodavage, published by dutton, an imprint of . zuki-safely-cabled. read more. fence invisible dog fence wondrous invisible dog fence over with regard to proportions 2400 x 1341. lesson . when you have a fence, and you have 3 dogs, unavoidably, they will always want to know who or what is on the other side in this case, at the side fence, . steve is the second of college girl\u0027s pets he is a weird mix of a dog looking like a short squat big dog odd steve is also a hound dog at heart.