There is the principle attributed to Houdini

Houdini died from a rather trivial stunt he performed many times before. A hit to the abdomen before he could flex his muscles most likely ruptured his appendix. Keaton died of lung cancer well past the end of his fame.

You can manage the danger of stunts, you can reduce it and prepare for anything that could go wrong. You can never completely avoid it and sometimes a single error is all it takes.