Some kind of faith in God is needed anytime you are near or operating anything man makes....lol..seriously..
I was a toolmaker, and now have equipment maintenance for a large manufacturer, where we build fossil and nuclear steam turbines and generators, and believe me, 10 million dollar custom built machine tools break. Castings fail, shafts fail, electronics fail, designs fail, and these things are well maintained. Bottom line is anything can fail at anytime for any reason. If it is a pattern, I would be a little concerned (like the monos cracking), but no one checks or x rays every casting or piece of steel. Stuff happens.