Commendable move from your collegue there, I don't think this is something everybody would do. I think I would be much too aware of the power lines, and just stay clear :I Off the top of my head, the riskyest move I've done were in self-preservation, and it was to somehow sneak my paper money out of view, during a muggery. In retrospect a stupid risk, but at the time, idunno what I was thinking I have also snuck away from a muggery while visiting Prague, and some students of my "paralel class" were attempted mugged. Attempted, because they were so amazingly naive, they never realized they were being mugged. The mugger obviously tried to be quick and discrete about it, so not to draw attention, and they simply didn't "get it". In the awkward discussion, I took my moment to casually walk away :] I am SO noble. But yes, risk is often a thoughtless act. Sacrifice is often very different.