"... that would be all?" asked the cashier.
"Yes."
"Could you give me your name for the bill, please?"
"John Rockefeller."
"Oh, like the cheese?" joked the cashier, smiling.
"No" answered John angry "The cheese is Roquefort, I am Rockefeller and you, lady, are fired."
"What did you say?"
"¡You are fired!"
And doing a sign of his hand to his assistant, the man made all the paperwork and, in less that five minutes, John had purchased the market and had fired the poor cashier.
The end.