[pontifier]

I think it was the movie "The Darwin Awards" that first introduced me to the concept of "micro-morts". The idea that there are activities that carry a small increase in the probability of death... Since then, I've seen other evidence of that idea.

I read a story about a nomadic tribe that will not sleep under dead trees as it is seen as bad luck. On any given night the chance that a dead tree will fall on you is very small, but if you sleep under dead trees every night, the chance that one will fall on you starts to add up, and it's likely to be your eventual cause of death.