Another vote in favor of the coffee lady.
At the time, McDonalds was offering free refills on coffee in the dining room as a promotion to bring in customers. However, they intentionally super heated the coffee to slow down the rate of consumption and effectively negate the refill policy. McDonalds knew the coffee was hot enough to cause severe burns but did not lower the temperature.
Additionally, you may remember that back then fast food cups tended to be very thin and flimsy (obviously made to be as cheap as possible).
These cups could easily implode unless they were handled very carefully. Coffee lady was served through the drive through and placed the cup between her thighs to hold it while she completed the transaction. The cup easily buckled under the pressure and the lid popped off. The poor lady received 3rd degree burns (yes, 3rd degree) all over her thighs and groin area, and required reconstructive surgery to her private areas.
Essentially the court found that it was grossly negligent of McDonalds to pass dangerously hot liquid through the drive thru window in an extremely flimsy container. You can thank this case for the nice styrofoam and stiff cardboard cups with sturdy lids that are now standard at all coffee to-go establishments.
Blind guy's case is bogus because there is an obvious safety and liability concern with mixing vehicle and pedestrian traffic in the same lane. There is no right to eat McDonalds after midnight and McDonalds is in no way obligated to offer a walk up window at all locations.