A car rental company claimed a casualty loss for losses sustained when rental customers purchased the company's damage waiver and then had an accident and the company decided not to repair the vehicle and return it to their fleet. The IRS determined that the loss was not deductible as a casualty loss because the loss was not sudden, unexpected and unusual in nature. Instead, the costs associated with accidents are an ordinary and necessary expense of the car rental business. C.C.M. 201529008 (Feb. 4, 2015).