This is an old made-up story but one that makes a lot of sense. The heat turned off one day and a couple had to call in a specialist to look at their furnace. The house was getting colder and the children were starting to complain. When the furnace professional arrived he was warmly welcomed into the home and made his way downstairs. Upon arriving at the furnace he gave it a quick inspection and then gave it a good bang in a certain spot. The furnace instantly turned on, the couple was elated and they all headed upstairs to give the children the good news.
The furnace guy took out his invoice and handed the couple a bill for $200. The husband was shocked at the price and asked why he had to pay $200 for 5 minutes of work. He also added that he
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