This isn't going to be nearly as funny written instead of spoken, because it will be ovbious, but... here's what happened:

I am an 18 year old E1 private. The Colonel is doing an inspection. He gets to me and says "Ah, I've heard about you. I hear you're pretty smart. Would you mind if I asked you a few questions?"

"Sir! No, Sir! Ask away Sir!"

So he goes through a bunch of dumb-ass questions regarding military stuff, and I answer everyone of them correctly. He is obviously impressed. Then he says "Okay Private, this one is for all the marbles. The very fate of the free world rests upon you answering this question. Are you ready?"

"Sir! Yes, Sir!"

"If M-A-C pause A-D-A-M-S, spells MacAdams,"
"And M-A-C pause H-E-N-R-Y spells MacHenry... "
"What does M-A-C pause H-I-N-E spell?"

With zero hesitation I say "Sir! M-A-C-H-I-N-E spells MacHiney Sir!"

"No Dumbass, it spells machine. You lose, the free world is lost." And he does his facing movement and goes to the next guy while I got very red in the face and the platoon laughed hysterically at me.