Early in the show, Howard underlined his request that the staff stop bothering guests after their appearances on the show.
Howard said he'd personally suffered backstage at shows that lacked the same policy: "You go to some places and they don't let you out of there. They have an agenda with you."
But Letterman doesn't allow any such nonsense: "I want the same professionalism here."
For example, Howard cited the time Sal confronted Jon Stewart in the green room: "You notice Jon Stewart hasn't been back since?"