 The staff had a " big fight " with the Fox network censors over the scene in which Santa 's Little Helper mates with a female greyhound named She 's The Fastest . The writers were originally worried about the idea , but Mirkin knew that they could shoot it in a certain way to show the dogs having sex without being explicit . In the scene 's final version , the dogs are only seen from the shoulders up ; the crew 's animatic showing the scene in full was later released on DVD . Anderson noted that during the episode 's censor screening , there was a giant laugh at the depiction . 
