There's a story in the Salt Lake Tribune about a ridiculous case:

The Appellate Court of Illinois ruled in July that the family of Detroy Marshall Sr. could proceed with their lawsuit against Burger King for Marshall's wrongful death caused when a car jumped the curb and crashed into a BK whose building was protected by a brick wall that the restaurant had built only a few feet from the ground instead of higher up. The trial court had dismissed the lawsuit, ruling that Burger Kings can't be expected to build fortresses against recklessly driven, airborne cars.

They should really make the buildings out of concrete, so these fools can go flying around the parking lot at 100MPH. Seriously, how fast would you have to be going to get airborne enough to fly into the building?