ORIGINAL: pmw
As a retired professional pilot, I have seen and heard every ''know it all'' on the planet. (Try sharing the cockpit with a test pilot!) I usually just let it roll off, but on a couple of occasions I had to play my trump card. Try this: ''You're a very experienced pilot, but have you ever walked on the moon?'' Answer: ''No''. My response: ''Then you don't impress me very much.'' Of coarse the damage is permanent, so choose the moment wisely. I've only had to use that twice in 40 years, but it sure did the job!
This is similar to what you describe. Enjoy.
F16 vs C-130
A C-130 was lumbering along when a cocky F-16 flashed by.
The jet jockey decided to show off.
The fighter jock told the C-130 pilot, 'watch this!' and promptly
went into a barrel roll followed by a steep climb. He then finished
with a sonic boom as he broke the sound barrier. The F-16 pilot
asked the C-130 pilot what he thought of that?
The C-130 pilot said, 'That was impressive, but watch this!'
The C-130 droned along for about 5 minutes and then the C-130
pilot came back on and said: 'What did you think of that?'
Puzzled, the F-16 pilot asked, 'What the heck did you do?'
The C-130 pilot chuckled. 'I stood up, stretched my legs, walked
to the back, used the toliet, then got a cup of coffee and a
cinnamon roll.'