I have a feeling that the NBA league office is going to issue a flop violation penalty to Charlotte Hornets rookie P.J. Hairston for whatever this was against the San Antonio Spurs. It was such an egregious attempt at drawing the foul that I'm not sure anybody knew what to do. The refs certainly didn't blow the whistle for him.
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Did he hit an oil slick on the ground? Did he step on a banana peel? Were there snipers in the arena? Is he working on some dance moves? Is it possible he has vertigo?