There was a young F-15 pilot flying escort for a B-52 one day.
The F-15 pilot, being the young hotshot that he was, challenged the B-52 pilot: "Anything you can do, I can do better" came the challenge over the R/T.
The B-52 pilot accepted the challenge, but stayed in level flight for 30 seconds.
"So? What did you do?" asked the young F-15 pilot.
"I just shut down two engines. Can you do that?" came the reply from the cockpit of the BUFF.

