you were to the library to get some books that you wanted to read,while you was waiting at the Counter you saw a small child with a book in his hand that he couldn't buy himself, So you decided to buy it for him to make him happy, it's a good thing after all. But when your turn comes to pay for the books, you have no money left to take some and you was about to refuse when a hand from behind you placed a black credit card on the counter. And from behind you heard "I'll pay for the books."