An oncology nurse suffered a head injury shopping at a nursery when struck by an improperly secured planter. She developed a concussion syndrome which became chronic with headaches, balance and visual symptoms. We had to explain a serious concussion sustained 3 years earlier when her head smashed into a car windshield. The insurance company attributed all of her problems to the car crash arguing that the planter incident was a mere modest aggravation of her preexisting concussion syndrome. The defense went so far as to hire a biomechanical expert who opined that the impact could not have caused any permanent injuries. Soon before the case went to trial, a settlement was reached.