Perhaps you’ve seen his question-marked Mini Cooper parked outside of the T.G.I. Friday’s. Perhaps you’ve seen him projected upon the National’s JumboTron, a single question mark tracing the curve of his back. Perhaps you’ve read about him in Washington City Paper. Surely, you’ve seen this Riddler-suited, bespectacled man spouting promises of Free Money! From the Government! (For only $39.95 + $6.95 postage and handling!)

Next week, you’ll get your chance to see him in the flesh, as local author, minor celebrity, and question-mark enthusiast Matthew Lesko descends upon the U.S. Capitol for a sleepless 72-hour Q&A. Lesko calls it a “Leskathon.” Its goal? Free. Money.

Fittingly, questions abound. How will an already off-kilter personality keep it together for three days in the 90-degree heat with no sleep? How many bystanders will simply pass by and, in a moment of inspiration, scream, “Free Money”? For a guy with an apparently insatiable addiction to question marks, isn’t a 72-hour Q&A nothing more than an irresponsible bender? And when is this thing, anyway?

I turned to the “Talk to Lesko Live!” feature on Lesko’s Web site for some pre-Q&A Q&A. Instead of live Lesko, however, I got “Kelly,” who, while live, I suspect lacked Lesko’s expertise and trademark whimsy.

[Kelly] hi [Kelly] how can i help you? [Visitor] I’m looking for information about the upcoming event on the National Mall. [Kelly] it’s going to be held Aug 14 thru Aug 17 [Kelly] 72 hours [Visitor] And he’s going to be there the whole time? [Kelly] yes [Visitor] How is he going to stay awake that long? [Kelly] He’s Matthew Lesko.

He’s Matthew Lesko. And when you’re mounting a “Leskathon,” maybe that’s all you need.