One of the most interesting stories about.. work life balance... was in Richard Rhodes' book (https://en.wikipedia.org/wiki/The_Making_of_the_Atomic_Bomb https:

One of the most interesting stories about.. work life balance... was in Richard Rhodes' book (https://en.wikipedia.org/wiki/The_Making_of_the_Atomic_Bomb https://en.wikipedia.org/wiki/The_Making_of_the_Atomic_Bomb), about fixing imperfections in the high explosive castings with dental tools just before (I think it was the night before?) the test. Another source here: https://www.abqjournal.com/trinity/trinity3.pdf https://www.abqjournal.com/trinity/trinity3.pdf