Gunther complaining to Anna Navarre about his own private conspiracy theory. Even funnier is that the sequel reveals that Gunther was right, the maintenance man was plotting against him.
Anna: Are you sure you pressed the right button?
Gunther: I do not make mistakes of that kind!
Anna: Your hand might have slipped.
Gunther: No, I wanted orange. It gave me lemon-lime.
Anna: The machine would not make a mistake.
Gunther: It's the maintenance man. He knows I like orange!
Anna: So you think the staff has some kind of plot?
Gunther: Yes! They do it on purpose!