An F-4 was flying escort with a B-52 and generally making a nuisance of
himself by flying rolls around the lumbering old bomber. The message for the
B-52 crew was, Anything you can do, I can do better.

Not to be outdone, the
bomber pilot announced that he would rise to the challenge. The B-52 continued
its flight, straight and level, however. Perplexed, the fighter pilot asked,
So? What did you do?

We just shut down two engines.

Henry Cate III