Three Chinese labourers are working on a building site when the foreman calls them over. If they can carry an extra pallet of bricks, he tells them that there will be an extra £50 in their wages.
The first man adds an extra pallet of bricks and the foreman is well pleased.
The second man also lifts an extra pallet and the foreman is even more pleased.
The third one tries with all his might but he just can’t lift an extra pallet. The foreman tells him: “You are the weakest chink. Goodbye.”