Boys,
Atrocities brought the McD coffee case up already on January 2004. Growltigga had some very nice posts about the topic in this thread that sumarize it quite nicley:
Link
Long story short: As an European laywer my point of view is that you can only be sued if you are guilty of neglect. The amout payable can only be as high as the damage (no punitive damage, this is civil law, not criminal law) and of course every one has to stand in for his own neglect. So in the end if you spill anything, may it be hot or not, it is your own fault and no one else. You know that coffee is hot and that you are not supposed to spill it no matter how hot it is. You can't possibly argue that the women would be any more dilligent if you knew that the coffee was 180 instead of 165 degrees. She still knows that both are hot and that she shouldn't spill it. Just because it is more hot then you think doesn't change a thing about the fact that you spilled it, not McD.
Why should McD be required to tell you how hot your coffee is exactly (even if they could tell you the temerature when they serve it which the don't...)? Just don't spill hot stuff!