a blond goes to a bar and says to the brunette behind the bar "I'm having trouble selling my car because it has 40,000 miles on it" the brunette replies in a hushed voice "here's the address of a friend of mine go see him and he'll set your clock back to 4,000 then you'll have no trouble selling it" the blond returns two weeks later and the brunette asked "did you sell the car?" the blond replied "what's the point it only has 4,000 miles on it"