Earlier in the year at Richmond, we saw Nelson Piquet Jr. kick Brian Scott below the belt. Saturday at Road America, we saw Max Papis slap Billy Johnson before Johnson had a chance to take off his helmet.
Papis was unhappy with Johnson from contact during the late stages of the race. During the cool-down lap, he shook his fist at Johnson and motioned with his index finger as to gesture towards the Roush Fenway driver to "come here."
The two ended up parked near each other on pit road and after Papis shook hands with Johnson's teammate Travis Pastrana, he approached Johnson for the quick slap before returning after Johnson had removed his helmet for a few more words.
The two drivers were certainly not the only ones mad at each other for late race contact -- the final laps of the race turned into a dramatic game of fender tag as drivers rooted and gouged their way to the finish line. That contact and unpredictability is one of the reasons that road course races have become some of the most entertaining in NASCAR.