On May 13, 2006, Edward Feierstein was driving home from his Philadelphia fitness club when his car was rear-ended. Two days later, Feierstein filed a claim with the tortfeasor’s liability insurer seeking reimbursement for his alleged bodily injuries. Two years later he filed suit against the company’s insured. The liability insurer, in its defense of the suit, hired a private investigator. Surveillance video footage was secured of Feierstein working out at a fitness center, and his club, while stretching, exercising on an elliptical machine, a weight-lifting machine, and playing tennis. At his deposition, Feierstein was unware of the video surveillance. He testified that he had not played tennis at all since the accident, nor worked out in any gyms since…