Leslie Nielsen performs a trouser cough symphony for Larry’s parents backstage at Letterman. Also, Larry preaches sympathy for a knife salesman who has lost his focus. Spoiler alert — it’s not pretty. Then Larry admits to stepping out on his steady supermarket. And not just to broaden his kids’ horizons. All stories guaranteed to be true. This episode is sponsored in part by Rowfs. Rowfs. Rowfs. Rowfs. No, Rowfs. Quote of the week: “If I don’t know where things are, I’d be a terrible idiot.” Get your very own Larry Miller Drinking Society card by sending a stamped self-addressed envelope to: Larry Miller Drinking Society c/o ACE Broadcasting 10061 Riverside…