Good choice. What about Jon Heder (Napoleon Dynamite?) Maybe something like this...

*Adam checks his hole cards after the river* "Flippin' sweet."

The jackass goes all-in. Adam: "All-in? You guys are retarded! Gosh! I call!"

After the laydown..."What the crap? I was playing killer poker for like three days! Are you guys tryin' to ruin my life and make me look like a friggin' idiot?"

Later, at that casino. Random guy "So Adam, how'd you do at the WSOP again?"

Adam: "I told you. I spent it playing with Sam Farha."

Guy: "Did you beat him in a pot?"

Adam: "Yes! He asked me for my autograph and about my awesome poker skills."

Guy: "How'd you beat him?"

Adam: "A frickin' reraise. What do you think?"