A foreman at a construction site gathers three of his workers: an Irishman, an Italian and a Chinese.
He says to the Irishman, "You're in charge of sweeping. I want this whole area swept up before I get back".
He says to the Italian, "You're in charge of shoveling. I want that pile shoveled into the truck so they can haul it away."
He says to the Chinaman, "You're in charge of supplies. Make sure all the work gets done before I get back."
Three hours later he returns, and none of the work is done. The Irishman says, "I couldn't find a broom. You left the Chinaman in charge of supplies and he disappeared." The Italian says "And I couldn't find a shovel".
So the foreman starts walking and looking for the Chinaman. Just then,the Chinaman jumps out from behind a pillar and screams "SUPPLIES!!"