Robin Williamson did a funny song called, I think, "Zoo Blues," in which all manner of animal puns are used to tell of the demise of a relationship, along the lines of "when I had the bucks, my deer, you were so fawn, but now my doe is gone and you're so colt to me. . ." It runs along very quickly and I admit to finding myself singing it with alarming frequency while driving in the car.