How else can you explain his mood swings, weight gain, and I swear his head size has increased three fold since his rookie year.  He must be using a larger helmet.  Someone needs to go and measure his noggin and while they are at it, take a urine sample.  I like Tony and I think he is good for NASCAR, but surely if he has the stamina to drive all day in the Indianapolis 500 and then shoot straight over to run in the Coca-Cola 500 at Lowe's Motor Speedway you have to be using something illegal.  Have you seen Tony flare up at other drivers for no reason?  How about the time he went after Kenny Irwin in Martinsville, VA?  Road Rage!  And the way Tony bump drafts drivers, WOW, he must be using.  Talk about performance enhancing, in 2005 Jeff Gordon started off the year strong with 2 wins and looked like he was going to cruise to the Nextel Cup Chase, and then Tony Stewart took over.  Must have been the "roids!" 

Compare the photos of Tony as a rookie in 1997 and now in 2006.  If weight gain is any indicator, he is definitely a user.  Come on NASCAR fans and tell me what you think