I hate seeing this case come up in discussions like this. This was not a frivolous lawsuit.
https://www.caoc.org/?pg=facts
https://en.wikipedia.org/wiki/Liebeck_v._McDonald's_Restaurants
http://www.hotcoffeethemovie.com/
The coffee was purchased at the drive-thru, and it spilled after they parked and she attempted to add cream and sugar in a car without cup holders. The documentary shows the extent of the injury. She received 3rd degree burns to her legs, requiring skin grafts. I wouldn't wish that on anyone. Yes, she voluntarily purchased it, but that doesn't absolve the company of responsibility. The lawsuit was filed after attempts to settle for lower amounts (approx $20k to cover medical expenses) were refused by the company.
It wasn't just her opinion that it was too hot...the coffee was hot enough (180-190deg F) to cause 3rd degree burns within 3-7 seconds, as confirmed by medical experts. McDonalds admitted that they were aware that it was too hot for safe consumption. The company policy required franchisees to serve coffee at that high of a temperature for drive-thrus to keep it hot at the end of a commute. However, they were also aware that it was too hot for safe consumption, and that customers tended to drink it during the commute. There were 700 other injury complaints made to McDonalds during the 10yrs prior to this. They ignored the complaints and maintained the policy.
She did not win not millions...the judge reduced the amount recommended by the jury for punitive damages.
(sorry for the sidetrack)