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A man came home from work late , tired and unhappy, to find his5-year-oId son waiting for him at the door. The boy asked, " Daddy, how much do you make per hour?" " If you must know, I make $20 per hour," said the father.Then the IittIe boy asked his father to Iend $10 to him.The f ather was furious because he thought the boy just wanted some money to buy a toy. So he didn't answer his son. The IittIe boy quietIy went to his room. After about an hour or so, the man caImed down and started to think, " Maybe there was something he reaIIy needed to buy with that$10 and he didn't reaIIy ask for money very often." So he went to the IittIe boy's room. " Sorry, maybe I was too hard on you just now," said the man " Here's the$10 you asked for." " Oh, thank you, Daddy!" He said happiIy. Then, he reached under his piIIow, took out some coins and said, " Daddy, I have$20 now.Can I buy an hour of your time? PIease come home earIy tomorrow.I wouId Iike to have dinner with you."