I think they know...

At least some of the time, I think the Jokers know what the other ones are going to ask them to do. For instance, they once asked Q to ask someone about his "doctor." And that's how they did it, too. They put up quotes. Well, so did Q, who I believe was in a room different from where they were. In another instance they have someone come and throw water on Sal, even though they weren't doing "that bit." Funny thing is, they both (Joe, I believe) and Sal both used the same words, "this is not that bit." Could be coincidence.

Finally, there was one episode where they were going to have a young black woman hit on Murr and he wasn't supposed to know. Well, he starts hitting on her. Then, when they tell him they "hired" her, or whatever, he's like, "That's not real?" in a real squeaky voice. Seemed phony to me. Seems like he caught on too quickly to the joke, and reacted to harshly.

There are other examples. I can't think of them right now, but I'll ad them if I do.