The proverbial shell game.
Oh yes, and what a game it is.
On the table I have placed three overturned cups. Under one cup I will place the truth. The other two cups contain a lot of hot air. I will scramble the cups before your very eyes. Correctly guess which cup contains the truth, and you win a prize.
The trick, of course, is to slide the cup containing the truth over the edge of the table so that it falls to the floor. So even if you do guess the correct cup, you lose.
Oh, and don't ask them to show you which cup actually contained the truth. You know, that's classified information. It's a matter of national security, dude. You know, the war on terrorism and all.
"Yeah, but... Ummm, what does my misappropriated property tax payment have to do with national security? It disappeared just like the truth I'm expecting from you..."
"We can't tell you how your missing property tax payment relates to national security... You just need to know that it does, and that you can't know why."
"Oh, I know why. It's because you're a two-bit corrupt fukking sack of ****e. See ya in court fuk nuts..."