Check out how happy Mike is on the podium at Pheonix! Would you mess with this guy? http://www.racerxill.com/RXimages/interviews/windham/Windham046.jpg
After 20 laps on an SX course, most guys LaRocco's age couldn't raise their arms up, or climb the podium. So I'm going to cut him some slack on the smile thing.
Maybe he is saving his smiles for the next time he wins one. Go Mike!