What happens in the juror room stays in the juror room (unless it's a mock trial and you get to watch hidden cameras and the foreperson who is a lawyer in real life declares himself as such and misstates the law, causing you to lose your graded mock trial final -- sorry, I'm still bitter).
Gregory Warger was riding his motorcycle when Randy Shauers clipped him. Fault was at issue, as was the proper measure of damages, but in the end, the jury sided with Shauers. Warger, after losing a leg in the accident, got nothing.
But then a spark of hope emerged: It turns out the foreperson had lied during voir dire when she was asked if there was any reason why she could not award damages. During deliberations, she told her fellow jurors that her daughter had been at fault in an accident and a lawsuit would have ruined her daughter's life. Someone leaked this to the lawyers and signed an affidavit. Warger wanted a new trial.