A blond is having trouble selling her car

A blond is having trouble selling her car. She tells her friend that it has nearly 300k miles on it and it’s difficult to sell to anyone.

Her friend says he has a cousin she can take it to. He’s a mechanic and can roll back the miles on the car to make it easier to sell.

A month goes by and they run into each other. Her friend asks if she ever took her car to his cousin.

She replies that yes she did and he did a great job rolling back the mileage to around 30k miles.

Her friend asks if she was then able to sell the car.

She replies “No; I would never sell a car with such low mileage. I’m keeping it for myself.”