http://www.break.com/movies/really_low_harrier_fly_over.html
BWhaha 
HAAA,HHAAA! 
Looked like some young Marine trying to prove his manhood when common sense took over and he ducked (the intelligent thing to do!
Sounds like you're referring to this one:
One time, an Air force General, an Army General, a Navy Admiral, and a Marine General met in a bar with a few of their constituents in tow.
The four gentleman had a few drinks, and the topic of bravery in the troops came up.
It just so happened, and enemy tank was spotted coming down the road in front of a bar. The Air Force general chimed in first:
"Hah! My airmen are so brave, I'll send 'em to stop that tank!"
He barked an order, and several of the airmen ran out in front of the tank, trying to stop it. They all got run over.
The Navy Admiral was next:
"Nice show, zoomy. Watch how it's done by an old pro!" He barked at his seamen, and off they went, ending up the same way.
The Army General, not wanting to be shown up, make a comment about "the old Army", and promptly sent his men after the tank. The results were no better.
All of the top brass finally turned to the Marine General. Silently, he took one last drag from his beer, and shouted, "Private Smuck, front and center!" A skinny private came running up and snapped to attention in front of the General. "Son, you think you're more brave than any Air Force, Army, or Navy man?"
"Yes sir!" replied the private.
"Then I order you, alone, to go out and stop that tank!"
Without a word, the private ran out the door, but stopped cold as soon as the door swung shut. He immediately turned back, opened the door and shouted, "*#&$ you, sir!"
