It can be tricky when a company gets sued by a former insider. The company wants to respond, especially when it depends on selling products to consumers. But what it says can then provide the plaintiff with additional fodder.

Consider the amended complaint filed against Toyota Motor Sales, U.S.A., Inc., (TMS) on Sept. 17 by former in-house lawyer Dimitrios Biller. Citing Toyota’s September 10 press release about his lawsuit, Biller added a new claim: defamation.