In one factory of Henry Ford, working team was paid for their rest. It was service team, which was responsible for smooth operation of the conveyor. They were repairers. They were paid only when sitting in the rest room. Once the red lamp breakage assembly line lit, they were awarded money.
Firstly, they always quickly made repairs to quickly return to the rest room. Secondly, they did repairs with high quality, so that they do not have to leave the room in the near future because of the same problem.