Fats stink like no human ever does. Met my SO for lunch yesterday.  She was out training for a gran fondo, I was working on my half marathon time.  We met at the end of our workouts in a local coffee shop. You know what I noticed?  Even though we'd both worked been working out and were sweaty we didn't stink.  The fat sitting a table away meanwhile was emitting this yeasty, stale urine, feces ridden reek.  The beast had this unnatural inhuman stink. Humans can smell a little sweaty when they work out, but clean, fit, humans generally smell ok.  Fats seem to always have this stink of death about them.