Re: Where's Miss Chicken?
Yeah, I'm pretty sure most people would be able to understand the 'hitting two birds with one stone' thing here, too. And even if they didn't I doubt that they'd think the person saying it was about to kill birds. There is such a thing as context and generally people do understand that an idiom is being used even if they don't understand its (exact) meaning.
"Now and then we had a hope that if we lived and were good, God would permit us to be pirates." Mark Twain, Life on the Mississippi