It's good to be honest when dealing with others.
Dan has an older car with some mechanical problems and has been looking at new cars.
Dan wants to sell the car quickly to get money for a down payment.
Dan posts the car for sale online at a lower price because of the issues it has.
Dan posts an ad saying that the car is in perfect mechanical condition.
The buyer is happy to pay a reduced price and wants to fix it himself.
Dan sells the car and the buyer is livid when he finds out the car's true condition.