Smartest Dog

A guy brings a dog to a bar and says he’s the smartest dog in the world. Guy asks him: Name a character from West Side Story? Dog: Riff Riff! Guy asks him: What covers a building or a house? Dog: Roof Roof! Guy asks him: Who’s the best baseball player ever? Dog: Ruth Ruth! Bartender kicks them both out of the bar. Dog: What went wrong? Should I have said Cy Young?