There was breakdown in the assembly line and no one on Henry Ford’s staff could fix it. As the story goes, his production lines were down for hours; hours turned into days, and Ford was frustrated. In desperation he called an electrical engineer friend whom he trusted to come to his plant, diagnose and repair the problem. His friend promptly arrived and after about ten minutes the Ford lines were up and running. A most grateful Henry Ford thanked him and told his friend to invoice the Ford Company for the repairs. A few days later Henry Ford received an invoice from his friend in the amount of $10,000. Flabbergasted, Henry called his friend on the telephone and protested, “You only tinkered around for ten minutes! Ten-thousand dollars?!” His friend agreed that he would re-invoice the repairs. A few days later Henry Ford received a modified invoice:
