" Is that all, sir? Only we've got stuff to finish before our knocking-off time, you see, and if we stay late we have to make more money to pay our overtime, and if the lads is a bit tired we ends up earning the money faster'n we can make it, which leads to a bit of what I can only call a conundrum—"

"You mean that if you do overtime you have to do more overtime to pay for it?" said Moist, still pondering how illogical logical thinking can be if a big enough committee is doing it.

"That's right, sir," said Shady. "And down that road madness lies."

"It's a very short road," said Moist, nodding. "

― Terry Pratchett , Making Money (Discworld, #36; Moist Von Lipwig, #2)