Sean wants to buy a friend’s car, but he does not have the $3,000 that his friend is asking. He has $2,500 and is considering borrowing the extra $500 from his sister. Sean is considering telling his friend that he needs the extra $500 for a deposit at the college he will attend next year. Sean knows his parents will be paying for this expense but feels this might be a good negotiating technique to save some money. What should he do?