Why Did Nini Push Nicole Kidman??

This afternoon, Nini was at an autograph signing at the Cascades in Downtown ATL. She signed approximately 700 autographs including 2 for Buffie The Body and Trina. She got everything out the way with no incident, and as she was leaving, Nicole Kidman was coming in, they exchanged some smiles, hellos and gave each other a nice hug. they stood there talking for a few minutes and they both instructed their bodyguards to take a walk while they caught up on girl talk. But something happened and for some reason, Nini pushed Nicole pretty hard and it was a puddle outside as it was pouring the previous 2 days and she fell in the puddle and got wet and muddy from her head to her toes. Paparazzi was in their glory snapping pictures and fans crowded around. Her bodyguard ran to Nini and grabbed her and screamed "What the hell is wrong with you woman?" Nini shot him a mean look and she shook her hand off from his, and Nini's bodyguard Justin ran over and said "Don't fucking touch her" and he punched Nicole's bodyguard and started stomping him out, the guy was bloody and passed out on the ground while fans were helping Nicole out. She screamed at Nini "WHAT THE HELL IS YOUR PROBLEM?" Nini's bodyguard then said "Shut up Nicole" and he pulled NINI into the Limo and they drove off. No one knows why they got into a semi fight especially since they were laughing and hugging a few minutes earlier, but Nini denied any comments and so has Nicole, but we are told her bodyguard will be fine, but Nini's bodyguard Justin has been arrested for assault as Nicole's bodyguard pressed charges, Nicole was given the option to press charges on Nini, but she denied to do so. If we can find out what went down we will let you guys know. P.S don't forget to grab a copy of Cymphonique's new album B.Y.O.U on Monday the 22nd. Also Nini has a show tonight in Downtown Alabama see ya there!