(Irv goes in the bathroom and sees if there's anyone there. He goes into the bathroom stall that he's supposed to fix, and does something. He then leaves.)
Zack: Something stinks!
(Cody gives him a look)
Cody: No comment.
Zack: I wonder what Irv was doing in there?
(Cody goes in the bathroom stall that Irv went in)
Cody: Look, Irv put diagrams on the toilet paper!
Zack: That's silly! Every one knows how to use toilet paper!
Cody: No, it's a cheat cheat on how to put the autoflush back together. We have to go tell the judges!
Zack: No, it will just be our word against his!
Cody: Then we have to catch Irv in the act!
Zack: You don't mean? (points to bathroom stall)
Cody: No! Cheating!