I recall a story from 30 or 40 years ago about a Sierra Club backpacking trip on which a participant was killed.
Apparently, he decided to set up his tent under a large dead tree, despite the advice and urging from others in the group to move somewhere else (pretty well known danger about dead trees falling, shedding branches, etc.)
During the night, the tree fell, and killed the guy. His family sued the SC and the trip leaders (specifically) for not ensuring his safety, and the National Parks service for "supplying a faulty tree".
None of the cases went very far.