Cancer

The tasks that nobody officially gave you are often the ones that matter most to how a place actually runs. You end up doing them because you see what needs doing and you are someone who does what needs doing, not because anyone asked or because it appears in your job description. These invisible labors follow you past the end of the workday, not as burden but as the weight of having seen something that others missed. The responsibility finds you because you were paying attention to the wrong things, which turn out to be the right things.