Welcome to the United States of America, the place where s robber can sue you because they injured themself robbing your house, and people sue you for saving their lives. Land of the free to have fucked up logic.

That's why you need to make sure your state has something along the lines of a Good Samaritan laws, in which you are protected from being sued if something like cracked or broken ribs happens. Honestly, any judge or jury that is a sane person just rule in your favor. That is one reason I am thinking of leaving human services (have a psychology degree and work with people all the time so I need CPR and first aid training) because people are too sue happy. If my training is out of date, can't be required to do anything. Let someone else do it. Would do it if a family member or friend.