Nothing on Earth is 100% safe.
I think we lose that perspective in today's world. Life ain't safe. We're all going to die eventually, of something. The more safe we try to make life, the more we encroach on individual freedoms and the less fun we have. On the other hand, there is a difference between fun and pure stupidity. That line is somewhat grey, however, and often like beauty: in the eye of the beholder.
