On my city's nature trails there are signs on the entrance of unofficial paths in the woods warning people that the ground could be uneven and slippery.
How pathetic have we become as a species that we can't even let someone walk in the woods without fearing a lawsuit?
Edit: I even remember being told by an employee at Costco to walk the long way through a long empty queue instead of simply going over or under the chain because "I could have hurt myself" doing so. Overprotective nonsense like that makes me want to live in a cabin in the woods away from everyone.