NASCAR has become boring with all of it's stars retiring and moving on, leaving behind a lot of empty seats and disappointed fans.

Retired driver Tony Stewart has found a way to stay in the news, though. He just punched a heckler at a race track in Minnesota!

Stewart was appearing at a track in Jackson, Minnesota. A blown engine knocked him out of a race early, yet he stuck around to sign some autographs.

That's when a heckler tried to get the best of Tony:

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