The exterminator

In “The Buck Stops Here,” a seventh-season “Dallas” episode, J.R. (Larry Hagman) is seated in his office at night when Harry (James L. Brown) knocks on the door.

HARRY: Evening, J.R.

J.R.: Come in, Harry.

HARRY: [Enters the room, closes the door behind him] What’s up?

J.R.: Two very important deals were stolen out from under me by Cliff Barnes. They were hush-hush, strictly confidential. Brokers that I’ve known and trusted for years came to me and told me I was the only one they were talking to. But Barnes beat me out. That greedy little cockroach is getting information before I can act. He has a spy working for him.

HARRY: Well, the first thing we have to do is set out a trap.

J.R.: All right. Let’s talk about the bait. I want that little insect to bite — and bite hard.