Lots of dumb things have happened because people just assume somebody else would have checked [x], where [x] is something painfully trivial. My favorite example

Lots of dumb things have happened because people just assume somebody else would have checked [x], where [x] is something painfully trivial. My favorite example is NASA destroying a Martian orbiter [1]. Thousands of people involved in a NASA project carried out over 5 years, at the cost of about half a billion dollars. The mission was a failure because nobody bothered to ensure that the systems were all using the same units of measurement - one system was using metric, the other customary. If something doesn't make sense to you, keeping it to yourself achieves little. At worst you learn something, at best - it's because something was wrong. [1] - https://en.wikipedia.org/wiki/Mars_Climate_Orbiter https://en.wikipedia.org/wiki/Mars_Climate_Orbiter