“You got a letter from headquarters this morning.”

“What is it?”

“It’s a big building where generals meet, but that’s not important.”

“Excuse me sir, there’s been a little problem in the cockpit…”

“The cockpit…what is it?”

“It’s the little room in the front of the plane where the pilots sit, but that’s not important right now.”

I like the contrast of these two:

I don’t mean to worry you but…