SINGAPORE - The late Mr Richard Magnus once had $50 in cash when he went to a petrol station to refuel. He instructed his young son, Keith, to ask the attendant to pump just $47 worth of petrol.
Puzzled at the odd number, Keith did as he was told. When his father returned from the cashier, he handed the attendant a can of Coke, a snack and a small tip.
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