Sacha teased a clip Sunday on Twitter about his upcoming new project ... and for unknown reasons Sacha decided Cheney was his next perfect victim by getting him to sign his "waterboard kit." Seriously. And Cheney -- a huge proponent of the controversial interrogation technique during his time in office -- gleefully obliges with his John Hancock.

After signing it, Cheney actually says, "That's a first. That's the first time I ever signed a waterboard." Unclear what's creepier -- that Sacha thought of this and actually asked Cheney, or that the former VP of the United States of America had no qualms signing a "waterboard kit."

As for Sacha, apparently the comedian/prankster has been undercover secretly filming a new show for a year. Showtime has been pimping a new comedy it dubbed as "perhaps the most dangerous show in the history of television," and it appears as though that is what Sacha has been working on. That show's slated for July 15.

Just for kicks ... here's a taste of Sacha in action. Sorry, Ron Paul.