Every cat I’ve ever known has garbage-drippings, sewage-effluent, oh-my-God-what-died-in-there stink breath. Even kittens. Worse yet is the concentrated stuff: cat drool should be classified as toxic waste, as anyone who lives with one of the many cats who drool when happy can attest – you have to scrub to get that stuff off. Every cat I’ve ever known also cleans itself with cat spit (usually its own). And yet every cat I’ve ever known, at least while it was healthy and hadn’t just walked out of a dumpster or a neglected litterbox, has sweet-smelling fur. How is this possible? I’ve heard people give vague explanations involving enzymes, ionization, etc., but nothing specific or persuasive.