Legitimate? She did it to herself.
The injury occurred in that area because she chose to place a cup of scalding hot coffee there, and then drive away!
If she dumped it in her eye, you wouldn’t say that injury was legitimate, would you? How does one safely drive whilst holding a cup in between their legs?
Astro, the coffee was hot enough to fuse her labia to her leg.
McDonald's was found 80% responsible. So I guess her putting the cup between her legs makes her 20% responsible.