You never know which race is going to set people off. You can't count on it. But the odds are highest at short tracks and Martinsville may lead the list. The slow corners, close quarters, and single preferable groove make for sheet metal shoving and hurt feelings. Saturday's NASCAR Camping World Truck Series race at Martinsville brought that for sure. By now, you have seen the video http://www.youtube.com/watch?v=tmL34DMzHrk of Ty Dillon getting a nose under Kevin Harvick and both trucks going around. You've seen the skirmish on pit road and the pointed comments by both drivers about the other afterwards. They say plenty.  

Talladega Superspeedway is a fun racetrack - one of the greatest and fastest in motorsports. Its high banking and wide surface allow cars to travel wide open and bump draft each other. But this characteristic sent speeds past 210 mph and eventually almost put Bobby Allison's No. 22 in the grandstands in 1988. NASCAR reacted by adding the plates, which was the right move at that time. But unlike, say, the plates temporarily used at New Hampshire in 2000 after two deaths that year at the track, NASCAR has left the plates on the racecars and created utterly random races at two of its crown jewel tracks.

The Scoop: After last week's kangaroo court at Kansas, the general feeling about Charlotte Motor Speedway's Bank of America 500 Saturday night was that the caution flag would not wave nearly as often. That was certainly the case, as only four cautions (one for a crash, one for an engine, and two for miniscule debris during long green flag runs) slowed the 334-lap race, the last of which allowing Brad Keselowski to chase down Kasey Kahne and win his first race in over a year.