There was this nouveau riche blond girl, who went to the nearest
Mercedes showroom with a pocketful of dollars, and came out with the
latest model.
Half an hour later she was back at the showroom, claiming a that the
car they sold her was terrible, that she was disappointed a brand-new
Mercedes would get a fault in the gearbox after 15 minutes. The
management apologized and gave her a new car.
Again, after half an hour she came back. The management offered her a
new car, but sent along one of their engineers to see if they could
figure out what the problem was. She put in the first gear... sped
up... put in second... third... fourth... fifth.... "And now," she
said, "for the rocket," and threw it in reverse.