Guy goes to a bar and says his dog can speak. Bartender *very* suspicious. Guy says, "What's over our head?", dog says "Roof!". Guy says, "What would call sandpaper?", dog says "Ruff!". Guy says, "Who's the most famous baseball player?", dog says "Rooth".
Bartender kicks them out.
Now they're on the curb.
Dog looks to the guy, he says, "Idunno, maybe I shoulda said DiMaggio?"